Artykuły w czasopismach: „ANSYS CFD”

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Jading, Abadi, Paulus Payung i Reniana Reniana. "ansys fluent; CFD; PCRD; simulation; sago starch". Jurnal Ilmiah Rekayasa Pertanian dan Biosistem 10, nr 1 (24.03.2022): 1–13. http://dx.doi.org/10.29303/jrpb.v10i1.279.

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The mini-scale pneumatic conveying ring dryer (PCRD) type sago starch dryer with a capacity of 80 kg / day has been applied to the processing of sago starch to produce dry sago starch. To increase the production capacity of the PCRD dryer, a recirculation pipe was modified. The modified pipe section is the venturi pipe diameter and the upriser vertical pipe increased. The diameter of the vertical upriser pipe is 2.5 times larger than that of the ubend pipe and the downcomer vertical pipe so that a buffer is formed. In addition, the difference in the diameter of the recirculation pipe can increase the residence time of the material. The purpose of this study was to simulate using ansys fluent to determine the temperature profile, air flow velocity, and pressure in the pneumatic conveying ring dryer (PCRD) type sago starch dryer pipe with a capacity of 1 ton per day. Simulations were carried out using the Computational Fluid Dynamics (CFD) technique using ansys fluent software package. The simulation results show that the temperature along the pipe has decreased by about 2oC at various variations of the input air velocity and variations in the outlet at the boundary conditions. Likewise, the air velocity at the end of the outlet pipe (vertical downcomer pipe) increases due to the difference in diameter with the inlet pipe. The pressure on the vertical upriser pipe is higher than the pressure on the ubend pipe and downcomer vertical pipe. The simulation results show that the recirculation pipe design is very well used so that it can be continued for the manufacture of PCRD-type sago starch dryer on a scale of 1 ton per day.

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Djodikusumo, Indra, I. Nengah Diasta i Iwan Sanjaya Awaluddin. "Geometric Modeling of a Propeller Turbine Runner Using ANSYS BladeGen, Meshing Using ANSYS TurboGrid and Fluid Dynamic Simulation Using ANSYS Fluent". Applied Mechanics and Materials 842 (czerwiec 2016): 164–77. http://dx.doi.org/10.4028/www.scientific.net/amm.842.164.

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This paper aims to demonstrate how to model, mesh and simulate a hydraulic propeller turbine runner based on the geometrical specification of the runner blade. Modeling process is divided into preparation and implementation phase. Preparation phase illustrates how to develop stream surfaces and passages, how to create and transform meanline and how to create an rtzt file. The profile in rtzt file has a certain fix thickness which has to be altered later. Implementation phase describes operations necessary in creating a propeller runner model in ANSYS BladeGen which consist of importing rtzt file, modifying the trailing edge properties and altering profile thickness distribution to that of 4 digits NACA airfoil standard. Grid is generated in ANSYS TurboGrid utilizing ATM Optimized topology. CFD simulation is done using the ANSYS Fluent with pressure inlet and pressure outlet boundary conditions and k-ε turbulence model. Hydraulic efficiency of the runner is calculated utilizing Turbo Topology module in ANSYS Fluent. The authors will share the advantages that may be obtained by using ANSYS BladeGen compared with the use of general CAD Systems.

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Matej, Kurilla, Knížat Branislav i Olšiak Róbert. "Approach to 3D Unsteady CFD Analysis of a Single-Blade Pump". MATEC Web of Conferences 328 (2020): 02016. http://dx.doi.org/10.1051/matecconf/202032802016.

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Single-blade centrifugal pumps are hydraulic machines used in many industrial areas. A unique screw shaped blade enables liquids containing solids and fibrous matters to be pumped. Owing to good pump hydraulic properties on the one hand and unfavourable impeller mechanical properties on the other have single-blade pumps become recently more interesting for researchers regarding the CFD simulations. In this case a conventional CFD approach for multi-blade pumps cannot be applied due to the lack of symmetry of the single-blade impeller. Possible approaches to the CFD simulation of a single-blade impeller in the Ansys Fluent and the Ansys CFX are compared in this paper. A comparison of two CFD meshing tools showed substantial element number decrease of the whole CFD model. This paper presents also the laboratory experiment results of the investigated single-blade pump. The paper describes a new approach to the single-blade CFD simulation through Ansys Fluent which is faster and more user-friendly then the conventional approach.

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Klyuyev, A. S., Y. I. Chernyshev, E. A. Ivanov i I. O. Borshchev. "Comparison of Jet Pump Numerical Calculation Results in ANSYS and Openfoam CFD Packages". E3S Web of Conferences 320 (2021): 04017. http://dx.doi.org/10.1051/e3sconf/202132004017.

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Currently, among the most popular computational fluid dynamics software packages are commercial CFD packages – ANSYS CFX, ANSYS Fluent, STAR-CCM+ and several others. In contrast to the above-mentioned commercial CFD packages, there is an OpenFOAM, a non-commercial, freely distributed, integrated platform for numerical modeling of solid-state mechanics tasks (including CFD tasks), and it is becoming more and more popular. In addition to being a non-commercial package, OpenFOAM also has open-source code, which allows users to write their own algorithms for solving highly specialized tasks. A comparison of ANSYS and OpenFOAM in the application to CFD problems of incompressible turbulent flow in this article is given by the example of jet pump calculation, which was tested in the Laboratory of Hydraulic Machinery of Peter the Great St.Petersburg Polytechnic University.

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Hohne, Thomas. "ICONE15-10259 CFD-SIMULATION OF THERMAL HYDRAULIC BENCHMARK V1000CT-2 USING ANSYS CFX". Proceedings of the International Conference on Nuclear Engineering (ICONE) 2007.15 (2007): _ICONE1510. http://dx.doi.org/10.1299/jsmeicone.2007.15._icone1510_128.

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Kevin Joseph, J., R. Jeyanthinathan i R. Harish. "CFD investigation on the performance analysis of Tesla turbine". IOP Conference Series: Earth and Environmental Science 850, nr 1 (1.11.2021): 012026. http://dx.doi.org/10.1088/1755-1315/850/1/012026.

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Abstract A Tesla turbine is a bladeless turbine in which fluid flows in the direction of the centripetal path. It uses fluid properties such as Boundary layer & adhesion of fluid on a series of discs keyed to a shaft. The initial cost and maintenance cost of the Tesla turbine is very low. Our project’s main motive is to improve the performance of a Tesla turbine by changing various parameters such as disc diameter and disc rotating speed through the CFD simulation software using water as a working fluid. The CAD model is designed using Ansys design modeler, meshing is performed using Ansys meshing and post processing is carried out in Ansys fluent. The numerical simulations were carried out using Ansys Fluent which is based on the finite volume method and the changes that occurred in the pressure and velocities are investigated. The parametric study is performed by varying the turbine disc speed. By performing CFD simulations, total pressure contour and velocity magnitude contours are plotted and it is found that pressure and velocity are maximum when the clearance between disc and turbine casing is lesser and at higher turbine disc speeds. The power output of the Tesla turbine is also plotted for various rpm where higher rpm gives maximum power output. The results from the present study would be useful in designing an efficient Tesla turbine with improved performance.

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Colman Lerner, Jorge Esteban, M. B. Del Sole, F. I. Dubois, J. E. Sambeth, A. A. Porta i E. Y. Sanchez. "CFD SIMULATION OF A PILOT-SCALE REACTOR FOR THE REMOVAL OF VOLATILE ORGANIC COMPOUNDS (VOCS)". Latin American Applied Research - An international journal 53, nr 1 (1.01.2023): 55–58. http://dx.doi.org/10.52292/j.laar.2023.1112.

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This work reports preliminary results on the fluid dynamic simulation using ANSYS CFD software of a pilot scale reactor experimentally tested for the removal of VOCs (toluene, ethylbenzene, methyl ethyl ketone and xylenes). The reactor is constructed from the modification of a commercial air stripper and has been successfully evaluated for the removal of VOCs using Mn, Ce and Pt based catalysts on ceramic monoliths (bentonite). By means of ANSYS CFD simulation it was possible to represent the flow in the reactor (validating with experimental data) and to simulate the flow in the monolith channels. This information will allow us to have a better understanding of the fluid dynamics in the catalysts and to simulate the reactions with different VOCs by combining ANSYS CFD with ChemKin-PRO.

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BOJKO, MARIAN, LUKAS HERTL i SYLVA DRABKOVA. "METHODS OF CFD MODELLING OF TWIN-SCREW PUMPS FOR NON-NEWTONIAN MATERIALS". MM Science Journal 2021, nr 6 (15.12.2021): 5366–72. http://dx.doi.org/10.17973/mmsj.2021_12_2021103.

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The twin-screw pump is designed for pumping highly viscous materials in the food industry. Rheological characteristics of materials are important in the specification of design parameters of screw pumps. Analysis of flow in the twin-screw pumps with definition of non-newtonian materials can be made by numerical modelling. CFD generally oriented software ANSYS Fluent and ANSYS Polyflow has been used for modelling. In this study those software’s (ANSYS Fluent and ANSYS Polyflow) were defined for solution of flow in the twin-screw pumps. Results were compared for the same boundary conditions on the inlet and outlet of the 3D model. For definition of the viscosity were used the Nonnewtonian power law. Parameters as consistency coefficient and flow exponent for Nonnewtonian power law were analysed by software ANSYS Fluent and ANSYS Polyflow. Postprocessing form ANSYS Fluent and ANSYS Polyflow were made by contours of field and by graphs.

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Krishnara J, C., S. Rajesh Ruban i N. Subramani. "Analysis of exhaust manifold to improve the engine performance". International Journal of Engineering & Technology 7, nr 2.8 (19.03.2018): 539. http://dx.doi.org/10.14419/ijet.v7i2.8.10517.

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The aim of the work is to analyze the performance of the engine exhaust manifold. Because the engine exhaust manifold is a significant factor in the engine performance. In this work the manifold design is prepared with the help of CAD software and it is analyzed by the ANSYS. This CFD and thermal analysis also done to check the performance of the redesigned exhaust manifold. The aim of CFD simulations performed to investigate the volumetric efficiency behaviour of an exhaust.

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Vyavahare, Pranav, Lokavarapu Bhaskara Rao i Nilesh Patil. "CFD Analysis of Double Suction Centrifugal Pump with Double Volute". Periodica Polytechnica Mechanical Engineering 62, nr 1 (21.12.2017): 74. http://dx.doi.org/10.3311/ppme.11425.

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In this study, Computational Fluid Dynamics (CFD) Analysis is used to investigate the flow in the centrifugal pump impeller using the ANSYS-CFX. Impeller is designed for head of 22 m, discharge of 52.239 m3/hr and for the operating speed of 2970 RPM. Impeller vane profile is generated by tangent arc method and CFD analysis is performed for 1st stage of vertical pump out of 15 stages. Velocity and pressure distribution are analysed for casing and impeller. Using ANSYS-CFX head developed by this impeller is calculated and compared with the required value. From results of CFD analysis, performance curves are plotted and compared with analytical performance curves. Results obtained from CFD nearly matches with analytical results.

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Barza, Tesfaye, i G. Lakshmikanth. "Flow Simulation And Performance Analysis Of Centrifugal Compressor Using Cfd_Tool". Journal of University of Shanghai for Science and Technology 23, nr 11 (26.11.2021): 693–703. http://dx.doi.org/10.51201/jusst/21/11941.

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This paper is concerned the flow simulation and performance analysis of the Centrifugal Compressor Using CFD – Tool. The complex internal flow of centrifugal compressor can be well analyzed, and the unique design system needs to be developed. It should be early to use the interface and also flexible for input and output. A 3-D flow simulation of turbulent – fluid flow is presented to visualize the flow pattern in-terms of velocity, streamline and pressure distribution on the blade surface are graphically interpreted. The standard K- e turbulence model and the simple model algorithm were chosen for turbulence model and pressure distribution well determined. The simulation was steady Heat transfer and moving reference frame was used to consider the impeller interaction under high resolution. Furthermore, A computational Fluid Dynamics (CFD) 3-D simulation is done to analyze the impeller head and efficiency required of centrifugal compressor. The impeller is rotated for a constant revolution and mass flow rate, in this study initially the geometry of centrifugal compressor impeller is created by an ANSYS Vista CCD, and the Blade modeller done by Bladegen, Finally, CFD analysis was performed in ANSYS CFX using the ANSYS Turbo grid meshing tool. According to the analysis, as the number of impeller blades increases, so does the value of the head and power imparted, as well as the impeller’s efficiency.

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Pal, Shweta, Arun Kumar Wamankar i Sailendra Dwivedi. "Review on Condenser Heat Transfer of Computational FluidDynamic System Using ANSYS". International Journal of Recent Development in Engineering and Technology 10, nr 2 (24.06.2021): 63–68. http://dx.doi.org/10.54380/ijrdetv10i109.

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Condenser is a high pressure side heat exchanger in which heated vapor enters and gets converted into liquid form by condensation process. In the condenser coil, gaseous substance is condensed into liquid by transferring latent heat content present in it to the surrounding. In the whole process, mode of heat transfer is conduction in condenser coil and forced convection between refrigerant and condenser. Any refrigeration system's backbone is comprised of condensers. It aids in the transfer of heat from the refrigerant to the universal sink, which is the atmosphere. The latent heat of the refrigerant is lost in the condenser. At the entry of the condenser, vapours from the compressor enter, and during the length of the condenser, the vapours are converted to liquid form, resulting in refrigerant in the form of saturated or even sub-cooled liquid form at the condenser's exit. In several sectors of chemical and petroleum engineering, computational fluid dynamics (CFD) is a common tool for simulating flow systems. As a branch of fluid mechanics, computational fluid dynamics (CFD) is an appropriate tool for investigating and modelling the ANSYS Program. The applicability of CFD studies for simulating the ANSYS Program was reviewed in this work. Ansys CFD is one of the industry's most powerful simulation packages

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Pashchenko, D. I. "ANSYS Fluent CFD Modeling of Solar Air-Heater Thermoaerodynamics". Applied Solar Energy 54, nr 1 (styczeń 2018): 32–39. http://dx.doi.org/10.3103/s0003701x18010103.

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S Muttalli, Raghavendra, Shweta Agrawal i Harshla Warudkar. "CFD Simulation of Centrifugal Pump Impeller Using ANSYS-CFX". International Journal of Innovative Research in Science, Engineering and Technology 03, nr 08 (15.08.2014): 15553–61. http://dx.doi.org/10.15680/ijirset.2014.0308066.

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Höhne, Thomas. "CFD Simulation of Thermal-Hydraulic Benchmark V1000CT-2 Using ANSYS CFX". Science and Technology of Nuclear Installations 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/835162.

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Plant measured data from VVER-1000 coolant mixing experiments were used within the OECD/NEA and AER coupled code benchmarks for light water reactors to test and validate computational fluid dynamic (CFD) codes. The task is to compare the various calculations with measured data, using specified boundary conditions and core power distributions. The experiments, which are provided for CFD validation, include single loop cooling down or heating-up by disturbing the heat transfer in the steam generator through the steam valves at low reactor power and with all main coolant pumps in operation. CFD calculations have been performed using a numerical grid model of 4.7 million tetrahedral elements. The Best Practice Guidelines in using CFD in nuclear reactor safety applications has been used. Different advanced turbulence models were utilized in the numerical simulation. The results show a clear sector formation of the affected loop at the downcomer, lower plenum and core inlet, which corresponds to the measured values. The maximum local values of the relative temperature rise in the calculation are in the same range of the experiment. Due to this result, it is now possible to improve the mixing models which are usually used in system codes.

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Senthil Kumar, R., N. Puja Priyadharshini i Elumalai Natarajan. "Experimental and Computational Fluid Dynamics (CFD) Study of Glazed Three Dimensional PV/T Solar Panel with Air Cooling". Applied Mechanics and Materials 787 (sierpień 2015): 102–6. http://dx.doi.org/10.4028/www.scientific.net/amm.787.102.

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The thermal performances of photovoltaic thermal (PV/T) flat plate panel were determined under 500–1000 W/m2 solar radiation levels. In the present work, fluid flow analysis and temperature distribution on solar panel has been carried out by experimental method and computational fluid dynamic (CFD) technique. The experiments have been carried out on clear days during the month April 2014. The geometric model for CFD analysis is generated using Solidworks. Mesh generation is accomplished by ANSYS Meshing Software. Physics setup, computation and post processing are accomplished by ANSYS FLUENT. The experimentally measured temperatures are compared to the temperatures determined by the CFD model and found to be in good agreement. It is also found that the difference between the experimental and CFD simulated outlet temperature differ only by less than 3.5°C.

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Tomescu, S., i I. O. Bucur. "Numerical Investigation of Oil Gas Separation with the Use of VOF CFD". Engineering, Technology & Applied Science Research 11, nr 6 (11.12.2021): 7841–45. http://dx.doi.org/10.48084/etasr.4446.

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In this research paper, a numerical study regarding gas-oil separation is presented. Employing the geometry of a classic separator used by the NRDI for Gas Turbines COMOTI and a Computer-Aided Design (CAD) software, the computational domain was defined. To perform the Computational Fluid Dynamics (CFD) investigation, the mesh was created with the ANSYS Meshing tool, and the ANSYS CFX was employed as a solver. The computational domain was split into 5 subdomains, 3 were fluid and 2 were defined as porous media. The volume porosity, loss model, and permeability were set up. In terms of turbulence flow, the standard k–ε model was adopted. The results of the numerical calculations in terms of oil volume fraction and streamline profiles were used to analyze the separator configuration. The results show that the numerical investigation with the VOF (Volume of Fluid Method) - CFD model is capable of analyzing the performance of a two-phase separator equipped with two demisters-porous media.

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Mataufani, Caesariski Erwald, Abdurahim Sidiq i Jainal Arifin. "Analisis Pengaruh Kalori Batubara dan Excess Air Pada Boiler CFB Dengan Metode CFD (Ansys)". Jurnal Teknik Industri Terintegrasi 6, nr 1 (15.04.2023): 27–40. http://dx.doi.org/10.31004/jutin.v6i1.13930.

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The Pulang Pisau Steam Power Plant (PLTU) uses a CFB type boiler with a coal consumption of 4,054-5,260 kCal/kg. This research was carried out by modeling the CFB type boiler used in the Pulang Pisau PLTU using Autodesk Inventor 2021 then for the iteration process using Ansys Fluent 2022 R2, the excess air variation used is 5%, 10%, 15%, 20%, and 25%. Based on the results of iteration using Ansys Fluent 2022 R2 with 4,054-5,260 kCal/kg calorie coal, for the addition of 5% excess air, the temperature at the outlet furnace is 2,199°C, for the addition of 10% excess air, the temperature at the outlet furnace is 2,195°C , for the addition of 15% excess air, the temperature at the outlet furnace is 1,960°C, for the addition of 20% excess air, the temperature at the outlet furnace is 1,910°C, for the addition of 25% excess air, the temperature at the outlet furnace is 1,855°C, then it can be concluded that the final temperature at the boiler furnace outlet is still far from the set target of 840-850°C. Where the lowest temperature is at 25% excess air with a value of 1855°C. So it can be concluded that the best excess air requirement and that is closest to the target is 25% excess air.

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Spanu, Simone, David Mosna i Giuseppe Vignali. "CFD Analysis of Coffee Packaging in Capsules using Gas Flushing Modified Atmosphere Packaging". International Journal of Food Engineering 12, nr 9 (1.11.2016): 875–87. http://dx.doi.org/10.1515/ijfe-2016-0047.

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Abstract The aim of this work is to analyze, by means of CFD (Computational Fluid Dynamics), the gas flow in a packaging machine used to fill polymeric capsules with coffee. The final goal is to optimize the geometric shape of some mechanical components in the machine’s sealing station in order to reduce the inert gas consumption achieving an O2 residual which is constantly equal or below 1 % by mass in the center of the capsule. The fluid domain has been obtained starting from the 3D CAD model of the sealing station of the packaging machine. The CAD software SolidWorks has been used to design the system, while Ansys CFX 14.5 software has been used for the CFD analysis. The CFD model has been validated by comparing its results with those obtained by experimental tests. The modified solution allows reducing the average O2 residual from about 3 % to less than 1 %.

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Shrivastava, Devansh. "CFD Modelling of Underground Coal Gasification using ANSYS Fluent Simulator". International Journal of Scientific & Engineering Research 12, nr 07 (25.07.2021): 505–19. http://dx.doi.org/10.14299/ijser.2021.07.02.

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Underground Coal Gasification is a non-traditional, in-situ combustion process for converting coal into product gases. In this process coal is combusted and the produced syngas which basically contains CO2, H2, CO and CH4 is extracted to the surface with the help of drilled wells. In this study, with reference to a lab-scaled UCG experiment [1] and taking the experimental data as the basis for the research a two dimensional CFD reactor model was created and further studies were done to establish the activity at the different locations of the reactor.

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Afif, A. A., P. Wulandari i A. Syahriar. "CFD analysis of vertical axis wind turbine using ansys fluent". Journal of Physics: Conference Series 1517 (kwiecień 2020): 012062. http://dx.doi.org/10.1088/1742-6596/1517/1/012062.

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Dixit, Shivanshu, Arvind Kumar, Suraj Kumar, Nitin Waghmare, Harish C. Thakur i Sabah Khan. "CFD analysis of biodiesel blends and combustion using Ansys Fluent". Materials Today: Proceedings 26 (2020): 665–70. http://dx.doi.org/10.1016/j.matpr.2019.12.362.

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Rahmati, Seyed Mohammadali, i Alireza Karimi. "A Nonlinear CFD/Multibody Incremental-Dynamic Model for A Constrained Mechanism". Applied Sciences 11, nr 3 (26.01.2021): 1136. http://dx.doi.org/10.3390/app11031136.

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Numerical analysis of a multibody mechanism moving in the air is a complicated problem in computational fluid dynamics (CFD). Analyzing the motion of a multibody mechanism in a commercial CFD software, i.e., ANSYS Fluent®, is a challenging issue. This is because the components of a mechanism have to be constrained next to each other during the movement in the air to have a reliable numerical aerodynamics simulation. However, such constraints cannot be numerically modeled in a commercial CFD software, and needs to be separately incorporated into models through the programming environment, such as user-defined functions (UDF). This study proposes a nonlinear-incremental dynamic CFD/multibody method to simulate constrained multibody mechanisms in the air using UDF of ANSYS Fluent®. To testify the accuracy of the proposed method, Newton–Euler dynamic equations for a two-link mechanism are solved using Matlab® ordinary differential equations (ODEs), and the numerical results for the constrained mechanisms are compared. The UDF results of ANSYS Fluent® shows good agreement with Matlab®, and can be applied to constrained multibody mechanisms moving in the air. The proposed UDF of ANSYS Fluent® calculates the aerodynamic forces of a flying multibody mechanism in the air for a low simulation cost than the constraint force equation (CFE) method. The results could have implications in designing and analyzing flying robots to help human rescue teams, and nonlinear dynamic analyses of the aerodynamic forces applying on a moving object in the air, such as airplanes, birds, flies, etc.

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Krukovsky, P. G., A. S. Polubinskiy, O. Y. Tadlia i V. N. Kovalenko. "CFD- МОДЕЛИРОВАНИЕ СОПРЯЖЕННОГО ТЕПЛОВЛАГОПЕРЕНОСА МЕЖДУ ПОРИСТЫМИ СТРОИТЕЛЬНЫМИ МАТЕРИАЛАМИ И ПАРОВОЗДУШНОЙ СРЕДОЙ". Industrial Heat Engineering 37, nr 4 (16.11.2017): 93–102. http://dx.doi.org/10.31472/ihe.4.2015.11.

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Разработана CFD-модель в программной среде ANSYS-FLUENT для моделирования сопряженного тепловлагопереноса между твердой поверхностью ограждения помещения и паровоздушной средой прослойки с учетом радиационного и конвективного теплообмена. Сопряженный тепловлагоперенос реализован с помощью специально созданных функций, что расширило расчетные возможности программы ANSYS-FLUENT. Полученные распределения температур и абсолютных влажностей в ограждающей конструкции с достаточной точностью совпадают с экспериментальными данными.

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Kunar, Rahul, i Dr Sukul Lomash. "Enhancement of Temperature Distribution and Heat Transfer Coefficient of Ribbed Tube by Simulation". SMART MOVES JOURNAL IJOSCIENCE 7, nr 1 (22.01.2021): 21–28. http://dx.doi.org/10.24113/ijoscience.v7i1.344.

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The heat transfer from surface may in general be enhanced by increasing the heat transfer coefficient between a surface and its surrounding or by increasing heat transfer area of the surface or by both. The main objective of the study and calculate the total heat transfer coefficient. Improve the heat transfer rate by using ANSYS CFD. During the CFD calculations of the flow in internally ribbed tubes. And calculated the temperature distribution and pressure inside the tube by using ansys. The model was created using CatiaV5 and meshed with Ansys, and the flow analysis is done with Ansys 19.2. The results showing that the heat transfer is increased. The enthalpy and temperature increase with flow is advancing when compare with normal boiler tube. In this study the total heat transfer rate of the pipe increase with the increase the rib height. Total heat transfer rate increase up to 7.7kw. The study show that the improvement in furnace heat transfer can be achieved by changing the internal rib design.

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Zhukov, Victor P. "Verification, Validation, and Testing of Kinetic Mechanisms of Hydrogen Combustion in Fluid-Dynamic Computations". ISRN Mechanical Engineering 2012 (13.08.2012): 1–11. http://dx.doi.org/10.5402/2012/475607.

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A one-step, a two-step, an abridged, a skeletal, and four detailed kinetic schemes of hydrogen oxidation have been tested. A new skeletal kinetic scheme of hydrogen oxidation has been developed. The CFD calculations were carried out using ANSYS CFX software. Ignition delay times and speeds of flames were derived from the computational results. The computational data obtained using ANSYS CFX and CHEMKIN, and experimental data were compared. The precision, reliability, and range of validity of the kinetic schemes in CFD simulations were estimated. The impact of kinetic scheme on the results of computations was discussed. The relationship between grid spacing, time step, accuracy, and computational cost was analyzed.

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Lvov, Vladislav, i Leonid Chitalov. "Semi-Autogenous Wet Grinding Modeling with CFD-DEM". Minerals 11, nr 5 (1.05.2021): 485. http://dx.doi.org/10.3390/min11050485.

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The paper highlights the features of constructing a model of a wet semi-autogenous grinding mill based on the discrete element method and computational fluid dynamics. The model was built using Rocky DEM (v. 4.4.2, ESSS, Brazil) and Ansys Fluent (v. 2020 R2, Ansys, Inc., United States) software. A list of assumptions and boundary conditions necessary for modeling the process of wet semi-autogenous grinding by the finite element method is presented. The created model makes it possible to determine the energy-coarseness ratios of the semi-autogenous grinding (SAG) process under given conditions. To create the model in Rocky DEM the following models were used: The Linear Spring Rolling Limit rolling model, the Hysteretic Linear Spring model of the normal interaction forces and the Linear Spring Coulomb Limit for tangential forces. When constructing multiphase in Ansys Fluent, the Euler model was used with the primary phase in the form of a pulp with a given viscosity and density, and secondary phases in the form of air, crushing bodies and ore particles. The resistance of the solid phase to air and water was described by the Schiller–Naumann model, and viscosity by the realizable k-epsilon model with a dispersed multiphase turbulence model. The results of the work methods for material interaction coefficients determination were developed. A method for calculating the efficiency of the semi-autogenous grinding process based on the results of numerical simulation by the discrete element method is proposed.

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Rama Chandra Manohar, K., Somagani Upendar, V. Durgesh, B. Sandeep, Ksk Rahim mallik, Gurram Narendra Santosh Kumar i Sk Hasane Ahammad. "Modeling and Analysis of Kaplan Turbine Blade Using CFD". International Journal of Engineering & Technology 7, nr 3.12 (20.07.2018): 1086. http://dx.doi.org/10.14419/ijet.v7i3.12.17766.

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Fluid assumes a basic part in huge numbers of the items that we experience each day from clear applications, for example, water treatment frameworks and auto and flying machine streamlined features to limit pushing. CFD investigation which empowers item outline and examination in a virtual domain has revolutionized liquid progression via robotizing the arrangement, notwithstanding for issues that are numerically substantial. By recognizing physical powers and stream attributes that are in some cases difficult to gauge or pick up knowledge into, CFD arrangements can help an organization drastically enhance time to showcase. Kaplan Turbine is Reaction, Axial and Adjustable Flow Turbine. In this Project displaying of Kaplan Turbine Will be finished by expecting shaft diam-eter, sprinter breadth and profile of the edge in Cero parametric Software. Computational Fluid Dynamic Analysis will have performed by im-porting the model in to CFD Software Ansys Fluent by expecting Initial Boundary Conditions (i.e. bay weight and Velocity. By Fixing Blade Twist point and differing flexible edge. Diverse CAD models will draw, and variety of stream parameters can be created along the turbine (i.e. weight and Velocity) in Ansys familiar Software. The above examinations to be performed for various Blade bend points. Suit-capable charts will be created between stream parameters. By this we will be in the situation to judge, which point is the most best one (the most best edge is the one which changes over the entire weight and speed of the liquid into valuable shaft work).

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George, Joseph, Sheeja Janardhanan i T. M. Sijo. "A Numerical Study on Stir Casting Process in a Metal Matrix Composite Using CFD Approach". Advanced Materials Research 1119 (lipiec 2015): 533–41. http://dx.doi.org/10.4028/www.scientific.net/amr.1119.533.

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This work brings out the numerical simulation of the stir casting technique for aluminium silicon carbide Metal Matrix Composite (MMC) in a closed crucible and the effect of the blade geometry and rotational velocity on solidification of the metal matrix composite has been predictedusing Computational Fluid Dynamics (CFD) approach. The material used in the crucible is silicon carbide in aluminiummetal matrix. Geometric modelling and meshing have been carried out using ANSYS ICEM CFD. Computer simulations have been carried using the commercial CFD package, ANSYS FLUENT. The calculations used 2-D discrete phase, solidification and melting model and enthalpy method. Mushy state mixing, indicative of the solidification patterns have been studied to predict the most suitable ratio of crucible to blade dimensions and speed of stirring to obtain the most uniform type of solidification which in turn induces some enhanced mechanical properties to the casting.

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Feng, Kun, Chunqing Li, Ming Zhang i Xuting Liu. "Simulation and Computational Study of CFD on Tube MBR Membrane Assembly". Discrete Dynamics in Nature and Society 2021 (13.05.2021): 1–8. http://dx.doi.org/10.1155/2021/5577715.

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When using tubular MBR to treat sewage, the water production is an important parameter to measure the efficiency of the tubular MBR system. The problem to be solved in this paper is to calculate the water yield of the tubular MBR system, so as to evaluate the sewage treatment efficiency of the MBR system. This research uses the CFD simulation software ANSYS 16.0 to study the water yield of the tubular MBR system. The MBR model of a single membrane filament tube was established using the ICEM CFD preprocessor in ANSYS 16.0, and the structured grid was divided to obtain a grid file. Then, the fluid solver was used to solve the mesh file and through the flow monitoring window to obtain the water output of the tubular MBR system. Finally, the CFD postprocessor in ANSYS 16.0 was used to visualize the calculation results and compare them with the waste-water treatment results of some actual MBR systems. The results show that the water yield calculated by the fluent solver is basically the same as that of the actual MBR system. This research realizes the purpose of calculating the water yield of the tubular MBR system with CFD technology, solves the problem of evaluating the working efficiency of the tubular MBR system with water consumption, and realizes the MBR before deployment The evaluation of the working efficiency of the system has certain reference value for the planning, design, and deployment of MBR.

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Montúfar Paz, Paúl, Rodrigo Rigoberto Moreno Pallares, Luis Santiago Choto Chariguaman, Luis Fernando Buenaño Moyano i Miguel Angel Escobar Guachambala. "ANÁLISIS DEL COMPORTAMIENTO ACÚSTICO Y OPTIMIZACIÓN DEL MATERIAL DEL ESCAPE DE AUTOMÓVILES LIVIANOS EQUIPADOS CON TURBO COMPRESOR MEDIANTE HERRAMIENTAS DE DINÁMICA DE FLUIDOS COMPUTACIONALES." Ciencia Digital 2, nr 3 (11.09.2018): 550–68. http://dx.doi.org/10.33262/cienciadigital.v2i3.175.

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En el presente proyecto de investigación se desarrolló en un pre-silenciador y silenciador del vehículo Zotye T600 ensamblado por CIAUTO en la ciudad de Ambato, un análisis de mecánica computacional de fluidos y acústico mediante ingeniería asistida por ordenador con el software ANSYS CFX y ANSYS ACT respectivamente. En primer lugar, se generó la geometría por medio de levantamiento de planos y escaneo 3D con la ayuda del software CAD SpaiceClaim. Los parámetros de entrada para las simulaciones tales como velocidad, temperatura y velocidad de giro del motor corresponden a valores recolectados mediante instrumentos de medición adecuados, en las versiones 1,5T y 2,0T del vehículo. En segundo lugar, se realizó la simulación CFD en ANSYS CFX puesto que es el solver de ANSYS más completo en transferencia de calor en interfaz fluido-sólido para analizar, de acuerdo a los resultados obtenidos en el silenciador se plantearon varias alternativas de diseño las mismas que fueron evaluadas en su funcionamiento y seleccionadas 2 de ellas, comparadas con el original por medio de CFD y la gráfica de pérdida de transmisión, determinando de esta manera las ventajas y desventajas de las alternativas. Se observó en la simulación acústica con respecto a la gráfica de pérdida de transmisión que no existe una diferencia significativa entre el diseño original y las alternativas, como consecuencia de esto se concluyó que las alternativas producen un beneficio sin un aumento significativo del ruido producto de la combustión del motor. Cabe recalcar que la generación y evaluación de alternativas mediante software CAE no reemplazan las pruebas experimentales las cuales deben realizarse, sin embargo, ayuda a la simplificación del proceso de prototipado.

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Tale, Mayur. "Solar Still for Water Distillation". International Journal for Research in Applied Science and Engineering Technology 10, nr 7 (31.07.2022): 869–80. http://dx.doi.org/10.22214/ijraset.2022.45293.

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Abstract: To produce pure water, it is known that the desalination of saltwater using solar systems and since a long time is a practical solution, especially in remote areas of rural, which suffer from the scarcity of drinking water due to poor infrastructure, many of which are not connected to the national water grid. The model was produced in ANSYS-CFD. The simulation was performed transient state to validate Practical experiments on solardistillation performance under the different climatic conditions of the city of Karbala, Iraq (latitude 32.6 °N and longitude 44.02 °E). The results of the ANSYS CFD simulation compared with the results obtained from conducting experiments, it showed a good agreement to solar still performance.

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Branco Jr, A. M. C., A. L. A. Mesquita i J. R. P. Vaz. "APPLICATION OF THE LINEAR SPRING-DASHPOT MODEL IN THE CFD-DEM SIMULATION OF ALUMINA FLUIDIZATION". Revista de Engenharia Térmica 14, nr 2 (31.12.2015): 95. http://dx.doi.org/10.5380/reterm.v14i2.62141.

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The coupling of the Computational Fluid Dynamics (CFD) to the Discrete Element Method (DEM) to simulate fluidization is computationally demanding. Although the Linear Spring-Dahspot (LSD) model can help to reduce the CFD-DEM simulation runtime due to its simplicity, its applicability is not reasonable for all sorts of problems. The objective of the present work is to show the application of the LSD model to the CFD-DEM simulation of alumina fluidization. The simulations were carried out with the software ANSYS FLUENT 14.5 and divided into two parts: (1) the reproduction with ANSYS FLUENT of simulations from the literature in which the LSD model and a representative particle approach were used. (2) the simulation of alumina fluidization and validation with experimental data. The results of three main sets of parameters were analysed to include different DEM and CFD time steps, drag models, the representation of particles with both uniform size and particle size distribution, etc. The main conclusion of this work is that the LSD model and the CFD-DEM approach can be used to model the actual behaviour of alumina fluidized beds, but the high simulation runtime and the correct setting of the strategies used to control it are still limiting factors which deserve special attention.

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Muraliraj, S. "Design and CFD Analysis of Screw Compressor by using ANSYS Software". Journal of Engineering and Applied Sciences 14, nr 1 (20.11.2019): 3850–52. http://dx.doi.org/10.36478/jeasci.2019.3850.3852.

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Admono, Tri, Yoyon Ahmudiarto, Amma Muliya Romadoni, Iman Abdurahman, Agus Salim, Teguh Tri Lusijarto i Mochammad Agoes Mulyadi. "Numerical investigation of the effect of triangle strut in vertical axis wind turbine (VAWT)". Journal of Mechatronics, Electrical Power, and Vehicular Technology 11, nr 2 (22.12.2020): 95. http://dx.doi.org/10.14203/j.mev.2020.v11.95-101.

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Strut is used in vertical axis wind turbine (VAWT) to restraint the framework. In this study, struts are analyzed to show the pressure losses in VAWT. ANSYS computational fluid dynamics (CFD) software is used to investigate triangle strut in VAWT. This study aims to show a CFD simulation of struts, which affects the aerodynamic of VAWT. In CFD software, the aerodynamic of VAWT can be analyzed in terms of pressure losses in the struts. The simulation method starts by making a struts model, then meshing and setting up ANSYS's boundary conditions. The last iteration runs in ANSYS until convergence. Our results show the percentage of pressure losses with the variation of the angle of wind 0°, 20°, 40°, and 60° are 0.67 %, 0.52 %, 0.48 %, and 0.52 %. The effect of triangle strut in VAWT did not affect the wind flow to the VAWT blade. The results also indicated that the triangle strut could be applied in the multi-stage of VAWT system.

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Pajcin, Miroslav, Aleksandar Simonovic, Toni Ivanov, Dragan Komarov i Slobodan Stupar. "Numerical analysis of a hypersonic turbulent and laminar flow using a commercial CFD solver". Thermal Science 21, suppl. 3 (2017): 795–807. http://dx.doi.org/10.2298/tsci160518198p.

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Computational fluid dynamics computations for two hypersonic flow cases using the commercial ANSYS FLUENT 16.2 CFD software were done. In this paper, an internal and external hypersonic flow cases were considered and analysis of the hypersonic flow using different turbulence viscosity models available in ANSYS FLUENT 16.2 as well as the laminar viscosity model were done. The obtained results were after compared and commented upon.

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Lawson, N. J., N. Salmon, J. E. Gautrey i R. Bailey. "Comparison of flight test data with a computational fluid dynamics model of a Scottish Aviation Bulldog aircraft". Aeronautical Journal 117, nr 1198 (grudzień 2013): 1273–91. http://dx.doi.org/10.1017/s000192400000885x.

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Abstract The following paper presents detailed aerodynamic data of a Scottish Aviation Bulldog light aircraft. The data is taken from the pre-stall region of the aircraft flight envelope through two flight test methods and from a geometrically accurate computational fluid dynamics (CFD) model of the full scale aircraft, which was meshed in Ansys ICEM CFD and solved in Ansys Fluent. The fidelity of the CFD model was achieved by development of a CATIA solid model with surfaces matching a spatial point cloud of the aircraft taken using a 3D laser scanner. Following a CFD verification process, a 3·4m hybrid mesh with a Spalart-Allmaras (SA) turbulence model was found to give the best overall lift and drag characteristics. Further detailed comparisons with the glide flight test data showed the CFD drag polar to have 63% lower zero lift drag, although this discrepancy was related to the simplification of the original CATIA surface model, which excluded the undercarriage, aerials and other protuberance drags. Inclusion of estimates of these sources of drag resulted in a match in zero lift drag to within 15% and a maximum lift to drag of 10:1 which was within 11% of the glide flight test result. The remaining drag discrepancy is attributed to other effects including trim drag and the surface finish of the actual aircraft.

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Giri, K. C. "Study of Thermal Performance of Closed Loop Pulsating Heat Pipe using Computational Fluid Dynamics". International Journal for Research in Applied Science and Engineering Technology 9, nr 9 (30.09.2021): 1384–88. http://dx.doi.org/10.22214/ijraset.2021.38088.

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Abstract: Pulsating heat pipe is a heat transfer device which works on two principles that is phase transition and thermal conductivity which transfer heat effectively at different temperatures. Different factors affect the thermal performance of pulsating heat pipe. So, various researchers tried to enhance thermal conductivity by changing parameters such as working fluids, filling ratio, etc. Analysis of heat transfer characteristics of closed loop pulsating heat pipe (CLPHP) is to be carried out by using Computational Fluid Dynamics. The CLPHP is to be modelled on ANSYS Workbench, the flow of CLPHP is to be observed under specific boundary conditions by using ANSYS Fluent software. Acetone and Water are taken as the working fluid with 70% filling ratio at ambient temperature 30° C and the heat flux of 200 W is supplied at evaporator. Also, the analysis has been done to know the behaviour of PHPs under varying supply of heat flux at evaporator (inlet), the output heat flux is obtained at condenser (outlet) and find out how the heat flux is varying at different temperatures. CFD results shows the heat transfer characteristics observing the performance of CLPHP is a numerical manner. The obtained CFD results are compared with the experimental. The outputs of the simulations are plotted in graphs and outlines. Keywords: Closed Loop Pulsating Heat Pipe, CFD, Heat Transfer, ANSYS.

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Doupník, Petr, i Tomáš Koutník. "Validation Task for Solution of Optimal Slotted Flap Position Using Fluent Software". Applied Mechanics and Materials 821 (styczeń 2016): 10–15. http://dx.doi.org/10.4028/www.scientific.net/amm.821.10.

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CFD solvers are commonly used in optimization problems in aerodynamics. Typical task is the search for optimal position of slotted flap. On the example is shown that the optimum predicted by CFD software can differ significantly from that found in the wind tunnel. Then the focus is on the optimal position of slotted flaps. It was examined with ANSYS Fluent CFD code with both 2D and 3D structured meshes and three different models of turbulence. Results from CFD and those of wind tunnel were compared with relevant disagreement found. Possible sources of the error are discussed and topics for further investigation in this field are suggested in conclusion.

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He, Ngo Van, i Le Thi Thai. "Effect of mesh on CFD aerodynamic performances of a container ship". Tạp chí Khoa học và Công nghệ biển 20, nr 3 (8.07.2020): 343–53. http://dx.doi.org/10.15625/1859-3097/20/3/15249.

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In this paper, a commercial CFD code, ANSYS-Fluent has been used to investigate the effect of mesh number generated in the computed domain on the CFD aerodynamic performances of a container ship. A full-scale model of the 1200TEU container ship has been chosen as a reference model in the computation. Five different mesh numbers for the same dimension domain have been used and the CFD aerodynamic performances of the above water surface hull of the ship have been shown. The obtained CFD results show a remarkable effect of mesh number on aerodynamic performances of the ship and the mesh convergence has been found. The study is an evidence to prove that the mesh number has affected the CFD results in general and the accuracy of the CFD aerodynamic performances in particular.

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Khonsha, B., G. Jahanfarnia, K. Sepanloo, M. Nematollahi i I. Khonsha. "ANSYS-CFX simulation of the SRBTL test loop core with nanofluid coolant". Kerntechnik 86, nr 6 (1.12.2021): 445–53. http://dx.doi.org/10.1515/kern-2020-0059.

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Abstract In the present study, CFD calculations are presented for the three types of water-based nanofluids Al2O3/water, CuO/water and TiO2/water with 0.1% volume fraction. These calculations are done with ANSYS-CFX and as geometry the SRBTL test loop as scaled down test loop for a VVER-1000 reactor core design is used. The goal of this study is to evaluate the CFD program against the SRBTL test loop core as a scaled core for applying water-based nanofluids as coolant. ANSYS-CFX simulation data are validated against the RELAP5/MOD3.2 simulation data for pure water. This comparison shows a good agreement. The simulation results for the nanofluids and water including Re number, temperature, viscosity, pressure drop and heat transfer coefficient through the SRBTL test loop core are compared. The results of the comparisons show that the SRBTL test loop core is suitable to extract experimental data of water-based nanofluids for using them as coolant in the VVER-1000 reactor.

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Zhu, Mao Tao, Feng Lu, Xue Lai Liu i Jing Chen. "CFD Analysis of Clutch and Improvement". Advanced Materials Research 718-720 (lipiec 2013): 1609–13. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1609.

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Establish the simplified model of 215 clutch. Then made grid division and apply the boundary conditions to the model to do CFD analysis in ANSYS CFX module. According to the results, a new pressure plates structure is suggested. The gap between the supporting platforms against the diaphragm spring is designed into bevel and the number of the supporting platform is increased from 6 to 9. The result of the new structure shows that the air flows quickly than the original one. In other words, the convection between the air and the pressure plate is improved, and it contributes to reduce the temperature rise.

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Ibrahim, Seoudi, Mahmoud Kamal i Hamdy Abotaleb. "Modeling of convection-dominated melting in rectangular enclosures". Thermal Science, nr 00 (2022): 74. http://dx.doi.org/10.2298/tsci211025074i.

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A validated CFD by ANSYS model is built for a melting process of Phase Change Material (PCM) (Gallium), inside rectangular enclosure heated from one side and cooled from another. This was carried out by enabling the solidification and melting model in addition to energy model of ANSYS. Regression model of melting front Results from CFD model by ANSYS is utilized and integrated inside numerical approach by MATLto generate constants for Nusselt correlations and effective conductivity during different melting stages that can be used to define melting front locations and temperature at grid different locations. In addition, effect of the wall temperature and model aspect ratio variation on melting process have been simulated by ANSYS and analyzed in details. Enthalpy method and conduction equations for 2D model were used to describe the predicted share of convection in melting process, with trial and error by assuming the constants automatically. Accordingly, melting process can be predicted in a simple and a conservative time way at the same time, the results are mainly indicating that convection heat transfer affects the melting process and melting behavior which is in coherence with previous experimental and analytical literature. Also, the effect of aspect ratio were investigated to assure that the more the aspect ratio, the better is the temperature homogeneity.

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Hrudka, J., M. Šutúš, M. Csóka, A. Raczková i I. Škultétyová. "Combined sewer overflow chamber analysis based on CFD modelling." IOP Conference Series: Materials Science and Engineering 1209, nr 1 (1.12.2021): 012019. http://dx.doi.org/10.1088/1757-899x/1209/1/012019.

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Abstract The paper deals with CFD simulation of a real combined sewer overflow chamber using Ansys fluent software. Simulations are created for various structural modifications. Within the results, the hydraulic parameters of the individual are evaluated with a proposal for optimal operation of the given relief chamber.

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Burmistrov, A., A. Raykov, S. Salikeev i E. Kapustin. "Modelling of working processes of non-contact oil free vacuum pumps by computational fluid dynamics (CFD) methods". Journal of Physics: Conference Series 2059, nr 1 (1.10.2021): 012003. http://dx.doi.org/10.1088/1742-6596/2059/1/012003.

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Abstract Numerical mathematical models of non-contact oil free scroll, Roots and screw vacuum pumps are developed. Modelling was carried out with the help of software CFD ANSYS-CFX and program TwinMesh for dynamic meshing. Pumping characteristics of non-contact pumps in viscous flow with the help of SST-turbulence model were calculated for varying rotors profiles, clearances, and rotating speeds. Comparison with experimental data verified adequacy of developed CFD models.

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Jakubec, Jakub, Juraj Paulech, Vladimír Kutiš i Gabriel Gálik. "Influence of Bypass on Thermo-Hydraulics of VVER 440 Fuel Assembly". Strojnícky casopis – Journal of Mechanical Engineering 67, nr 1 (1.04.2017): 69–76. http://dx.doi.org/10.1515/scjme-2017-0007.

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AbstractThe paper deals with CFD modelling and simulation of coolant flow within the nuclear reactor VVER 440 fuel assembly. The influence of coolant flow in bypass on the temperature distribution at the outlet of the fuel assembly and pressure drop was investigated. Only steady-state analyses were performed. Boundary conditions are based on operating conditions. ANSYS CFX is chosen as the main CFD software tool, where all analyses are performed.

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De Alwis, V. A. U., A. P. K. De Silva, S. D. G. S. P. Gunawardane i Young-Ho Lee. "Computational fluid dynamic simulation of hull reservoir wave energy device". Journal of Physics: Conference Series 2217, nr 1 (1.04.2022): 012041. http://dx.doi.org/10.1088/1742-6596/2217/1/012041.

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Abstract This paper presents a Computational Fluid Dynamics (CFD) analysis of a wave energy device called the Hull Reservoir Wave Energy Converter (HRWEC). The device consists of a floating hull and a flap connected to the shaft of power take-off system (PTO), which is integral to the hull structure. It is unique due to its ability to convert wave energy by utilizing the pitch motion of the hull and rotating flap due to the internal water movement in the hull. Due to the complexity of the internal fluid dynamics, a CFD-based analysis was considered most appropriate. The CFD investigation of the dynamics of the device was done under regular wave conditions by using the ANSYS-AQWA and ANSYS FLUENT. Relative pitch angle variation, the hydrodynamic coefficients, which determine the degree of power extraction, were obtained from simulated results. A simulation was designed exhibiting complete system dynamics for different configurations varying on internal water height. Excellent convergence was observed, and an optimum configuration was identified. It is expected to validate the simulation results through experiments in the foreseeable future.

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Srivastava, Prateek, Sachin Kansal, Ashish Talwalkar i R. Harish. "CFD analysis on the influence of angle of attack on vertical axis wind turbine aerodynamics". IOP Conference Series: Earth and Environmental Science 850, nr 1 (1.11.2021): 012027. http://dx.doi.org/10.1088/1755-1315/850/1/012027.

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Abstract The Angle of Attack (AOA) in a Vertical Axis Wind Turbine (VAWT) plays an important role in determining the forces and the power generated by the wind turbine. It is difficult to find the suitable AOA due to the complex and constantly changing wind flow patterns. In this paper, we have performed CFD simulations using Ansys Fluent software, based on the constantly changing AOA. The CFD simulations were conducted by selecting a suitable range of AOA and the velocity of the wind. The selected range of AOA varied from 5 degrees to 25 degrees with increments of 5 degrees and the range of the air velocities varied from 7m/s to 21m/s with increments of 7m/s. The tests were also performed using the X-Foil software. The results obtained from the CFD simulations, done by using the Ansys Fluent Software and from the X-Foil software, were then compared to give a more accurate and optimized AOA and velocity value. This optimization of the AOA could enhance the overall performance of the Vertical Axis Wind turbine.

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Gao, Xiao Yan, Ya Ning Zhang, Bing Xi Li i Lu Dong. "CFD Modeling of an Entrained Flow Gasifier". Applied Mechanics and Materials 448-453 (październik 2013): 1624–27. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.1624.

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A 2 D CFD model was established to simulate sawdust gasification in an entrained flow gasifier using Ansys Fluent software. Syngas composition, syngas yield and syngas LHV were evaluated. The simulated syngas compositions were in agreement with the experiment results. The relative errors of syngas yield and LHV varied in the ranges of 2-15% and 1-9%, respectively. The results showed that the numerical model established in this study can be applied to simulate biomass gasification in entrained flow gasifier.

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Cao, Wei, Ying Fang i De Xiang Li. "Study of CFD Modeling of Performance for Classification". Advanced Materials Research 516-517 (maj 2012): 784–89. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.784.

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The numerical simulation in the classification has been used in ANSYS CFX 10.0. We described the different flow fields within the classification in accordance with the one-phase simulation experiment, which provided a new theoretical perspective for optimized design on classification. At the same time, the classification efficiency was predicted by simulation for two phase particle trajectory. This will lay a foundation for improving classification efficiency.

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