Journal articles: 'CFD ANSYS Fluent'

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Pashchenko, D. I. "ANSYS Fluent CFD Modeling of Solar Air-Heater Thermoaerodynamics." Applied Solar Energy 54, no. 1 (January 2018): 32–39. http://dx.doi.org/10.3103/s0003701x18010103.

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Djodikusumo, Indra, I. Nengah Diasta, and 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 (June 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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Krukovsky, P. G., A. S. Polubinskiy, O. Y. Tadlia, and V. N. Kovalenko. "CFD- МОДЕЛИРОВАНИЕ СОПРЯЖЕННОГО ТЕПЛОВЛАГОПЕРЕНОСА МЕЖДУ ПОРИСТЫМИ СТРОИТЕЛЬНЫМИ МАТЕРИАЛАМИ И ПАРОВОЗДУШНОЙ СРЕДОЙ." Industrial Heat Engineering 37, no. 4 (November 16, 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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Matej, Kurilla, Knížat Branislav, and 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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Rahmati, Seyed Mohammadali, and Alireza Karimi. "A Nonlinear CFD/Multibody Incremental-Dynamic Model for A Constrained Mechanism." Applied Sciences 11, no. 3 (January 26, 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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Dixit, Shivanshu, Arvind Kumar, Suraj Kumar, Nitin Waghmare, Harish C. Thakur, and 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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Afif, A. A., P. Wulandari, and A. Syahriar. "CFD analysis of vertical axis wind turbine using ansys fluent." Journal of Physics: Conference Series 1517 (April 2020): 012062. http://dx.doi.org/10.1088/1742-6596/1517/1/012062.

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Shrivastava, Devansh. "CFD Modelling of Underground Coal Gasification using ANSYS Fluent Simulator." International Journal of Scientific & Engineering Research 12, no. 07 (July 25, 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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Pajcin, Miroslav, Aleksandar Simonovic, Toni Ivanov, Dragan Komarov, and 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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Huang, Dennis, Zhigang Yang, and Randolph Chi Kin Leung. "Implementation of Direct Acoustic Simulation using ANSYS Fluent." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 5 (August 1, 2021): 1243–52. http://dx.doi.org/10.3397/in-2021-1787.

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Direct Acoustic Simulation (DAS) is a powerful Computational Aero Acoustics method that obtains hydrodynamic and acoustic solutions simultaneously by solving compressible Navier-Stokes equation together with state equation of ideal gas. Thus, DAS has advantages for cases with flow acoustic coupling and high Mach numbers (). With an increasing demand of massive-scale calculations, a robust numerical solver for DAS is required. ANSYS Fluent is a suitable CFD platform with proven robustness. However, there is no direct implementation of DAS in the current version of ANSYS Fluent. The present study, therefore, aims to investigate an approach for implementing DAS using ANSYS Fluent. Given the acoustic part of fluctuations is much smaller than the hydrodynamic part in amplitude, a DAS solver requires high accuracy and low dissipation. Based on these needs, proper solution methods, spatial discrete methods and boundary conditions are firstly determined through simple calculations of two dimensional propagating plane waves. Afterwards aeroacoustics of a two-dimensional cavity flow at 0.6 is calculated to verify the capability for solving separating flow with the aforementioned set-up. Finally, aeroacoustics of a cylindrical bluff body at a turbulent regime and 0.2 is calculated in three-dimensions to verify the capability for solving turbulent flow using Monotonically Integrated Large Eddy Simulation.

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Chen, Shu Ling, and Song Lin Yang. "Simulation of Viscous Flow around Surface Ship Using ANSYS-Fluent CFD Code." Applied Mechanics and Materials 419 (October 2013): 127–33. http://dx.doi.org/10.4028/www.scientific.net/amm.419.127.

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In this paper, numerical simulations have been carried out to determine the incompressible free surface flow around a Wigley hull form for which experimental results are available. A commercial viscous flow finite volume code using the two-phase Eulerian-Eulerian fluid approach has been used in this study. The simulation conditions are the ones for which experimental results exist. The shear stress transport (SST) turbulence model has been used in the viscous flow code. A structured grid was used with the viscous flow code for meshing the computational domain. The results compare well with the available experimental data, which make their complementary application useful for determining the total ship resistance.

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Anil Hemanth, Varada, and U. S. Jyothi. "CFD Analysis of a Solid Propellant Retro Rocket Motor using Ansys Fluent." E3S Web of Conferences 184 (2020): 01054. http://dx.doi.org/10.1051/e3sconf/202018401054.

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A Solid propellant Retro Rocket Motor with a C-D Nozzle is analyzed using Ansys Fluent 17.1 .Steady State analysis of a retro rocket motor has been done for Viscous models like Inviscid and k-ɛ (Realizable) with air and gas as working fluids. The dimensions and the boundary conditions of the nozzle are kept consistent for both the viscous models to compare the exit parameters to theoretical values obtained by using one dimensional equations. The results obtained shows that the exit temperature of the nozzle in Inviscid viscous model is higher than theoretical value by 2.2% and for k-ɛ viscous model it is higher by 5.4% with gas as working fluid.

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Doupník, Petr, and Tomáš Koutník. "Validation Task for Solution of Optimal Slotted Flap Position Using Fluent Software." Applied Mechanics and Materials 821 (January 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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Lvov, Vladislav, and Leonid Chitalov. "Semi-Autogenous Wet Grinding Modeling with CFD-DEM." Minerals 11, no. 5 (May 1, 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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Branco Jr, A. M. C., A. L. A. Mesquita, and J. R. P. Vaz. "APPLICATION OF THE LINEAR SPRING-DASHPOT MODEL IN THE CFD-DEM SIMULATION OF ALUMINA FLUIDIZATION." Revista de Engenharia Térmica 14, no. 2 (December 31, 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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Senthil Kumar, R., N. Puja Priyadharshini, and 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 (August 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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Silva, Mónica F., João B. L. M. Campos, João M. Miranda, and José D. P. Araújo. "Numerical Study of Single Taylor Bubble Movement Through a Microchannel Using Different CFD Packages." Processes 8, no. 11 (November 7, 2020): 1418. http://dx.doi.org/10.3390/pr8111418.

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A Computation Fluid Dynamics (CFD) study for micro-scale gas–liquid flow was performed by using two different software packages: OpenFOAM® and ANSYS Fluent®. The numerical results were compared to assess the capability of both options to accurately predict the hydrodynamics of this kind of system. The focus was to test different methods to solve the gas–liquid interface, namely the Volume of Fluid (VOF) + Piecewise Linear Interface Calculation (PLIC) (ANSYS Fluent®) and MULES/isoAdvector (OpenFOAM®). For that, a single Taylor bubble flowing in a circular tube was studied for different co-current flow conditions (0.01 < CaB < 2.0 and 0.01 < ReB < 700), creating representative cases that exemplify the different sub-patterns already identified in micro-scale slug flow. The results show that for systems with high Capillary numbers (CaB > 0.8) each software correctly predicts the main characteristics of the flow. However, for small Capillary numbers (CaB < 0.03), spurious currents appear along the interface for the cases solved using OpenFOAM®. The results of this work suggest that ANSYS Fluent® VOF+PLIC is indeed a good option to solve biphasic flows at a micro-scale for a wide range of scenarios becoming more relevant for cases with low Capillary numbers where the use of the solvers from OpenFoam® are not the best option. Alternatively, improvements and/or extra functionalities should be implemented in the OpenFOAM® solvers available in the installation package.

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Gao, Xiao Yan, Ya Ning Zhang, Bing Xi Li, and Lu Dong. "CFD Modeling of an Entrained Flow Gasifier." Applied Mechanics and Materials 448-453 (October 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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MAGIER, Mariusz, and Tomasz MERDA. "Comparison Analysis of Drag Coefficients for Supersonic Mortar Projectiles ." PROBLEMY TECHNIKI UZBROJENIA, no. 4 (March 2, 2017): 21–28. http://dx.doi.org/10.5604/01.3001.0009.8982.

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Results of comparison between drag coefficients established by the firing tests and numerical simulations are presented in the paper. The results of numerical calculations carried out by CFD method, exploiting Ansys Fluent v16 software, were used to develop initial firing tables for newly designed projectiles for RAK mortar.

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Arshad, Azim, Shahrani Anuar, Ahmmad Shukrie, and Rosdi Hussin. "CFD Study of Tidal Current Turbine Shroud for Initial Design Evaluation." Applied Mechanics and Materials 679 (October 2014): 35–38. http://dx.doi.org/10.4028/www.scientific.net/amm.679.35.

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CFD simulation of a tidal current turbine shroud was performed using Ansys FLUENT commercial code and comparison was made with experimental data. The simulation result obtained was in good agreement with the experimental data. The coefficient of velocity, Cv was in the range of approximately 1.2 to 1.4 for both simulation and experiment. The present study gave useful information on the viability of CFD simulation for the initial evaluation of shroud design performance.

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Penumarthi, Surya Vamshi. "CFD Analysis on NACA 63-215 Airfoil using ANSYS Fluent for Wind Turbine." International Journal for Research in Applied Science and Engineering Technology 8, no. 8 (August 31, 2020): 1336–42. http://dx.doi.org/10.22214/ijraset.2020.31159.

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Tisovská, Petra, Pavel Peukert, and Jan Kolář. "Verification of ANSYS Fluent and OpenFOAM CFD platforms for prediction of impact flow." EPJ Web of Conferences 143 (2017): 02130. http://dx.doi.org/10.1051/epjconf/201714302130.

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Pashchenko, D. I. "CFD Modeling of Operating Processes of a Solar Air Heater in ANSYS Fluent." Journal of Engineering Physics and Thermophysics 92, no. 1 (January 2019): 73–79. http://dx.doi.org/10.1007/s10891-019-01908-8.

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Węgrzyński, Wojciech. "Smoke and heat flow in a large volume building in case of fire." Budownictwo i Architektura 13, no. 4 (December 9, 2014): 057–65. http://dx.doi.org/10.35784/bud-arch.1706.

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In the paper the author presents some chosen methodologies used in the design process of natural smoke and heat ventilation systems and the use of Computational Fluid Dynamics (CFD) tools. Comparison of the performance of various systems was conducted on the basis of performed CFD analyses. The analysis was prepared with the use of ANSYS Fluent 14.5 package, with the use of RNG k-ε turbulence model. The results of analysis are presented, together with the additional design recommendations.

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Krukovsky, P. G., A. S. Polubinskiy, O. Y. Tadlia, and V. N. Kovalenko V.N. "CFD-МОДЕЛИРОВАНИЕ СОПРЯЖЕННОГО ПАРО- И ВЛАГОПЕРЕНОСА В ПОРИСТЫХ СТРОИТЕЛЬНЫХ МАТЕРИАЛАХ." Industrial Heat Engineering 37, no. 1 (February 20, 2015): 32–43. http://dx.doi.org/10.31472/ihe.1.2015.05.

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Рассмотрена CFD-модель, учитывающая процессы сопряжённого переноса пара и влаги, поступающие в пористые строительные материалы из влажного воздуха. В отличие от существующих, рассмотренная модель учитывает сопряженный паро- и влагоперенос, а также соотношение между паровой и влажностной составляющими в соответствии с кривой сорбции, имеющейся для рассматриваемого строительного материала. Проведен анализ особенностей реализации разработанной модели в среде программы ANSYS-FLUENT и сравнение результатов расчетов с экспериментальными данными при увлажнении газобетона.

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Shaaban, Ayman A., Samy M. Morcos, Essam Eldin Khalil, and Mahmoud A. Fouad. "Effect of Bench Hood Exhaust Usage on Indoor Air Quality in a Chemical Laboratory." Evolving Trends in Engineering and Technology 1 (August 2014): 14–22. http://dx.doi.org/10.18052/www.scipress.com/etet.1.14.

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Indoor air quality inside chemical laboratories subjected to gaseous contaminants was investigated numerically throughout the current research using Ansys Fluent 13. The lab is 4.8 m (L) * 4.3 m (W) * 2.73 m (H). The model was built and mesh was generated using Gambit 2.2.30 yielding around 1.4 million cells. To ensure the reliability of the Computational Fluid Dynamics (CFD) model validation was done against experimental data of three cases done by Jin et al. [1]. The model could simulate accurately contaminant mole fraction to the order of 10 Indoor air quality inside chemical laboratories subjected to gaseous contaminants was investigated numerically throughout the current research using Ansys Fluent 13. The lab is 4.8 m (L) * 4.3 m (W) * 2.73 m (H). The model was built and mesh was generated using Gambit 2.2.30 yielding around 1.4 million cells. To ensure the reliability of the Computational Fluid Dynamics (CFD) model validation was done against experimental data of three cases done by Jin et al. [1]. The model could simulate accurately contaminant mole fraction to the order of 10.

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Staša, Pavel, Vladimír Kohut, Oldřich Kodym, and Zora Jančíková. "Methane Diffusion in a Porous Environment." Defect and Diffusion Forum 353 (May 2014): 50–55. http://dx.doi.org/10.4028/www.scientific.net/ddf.353.50.

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The paper deals with modeling and simulation of methane flow through the porous environment using the CFD (Computational Fluid Dynamics) software Fluent. We compare three situations, which can occur in areas, where mining activities were closed few years ago, in this article. First case is modeling of methane flow through the rocks. Second event is situation where the thin water layer is situated at the surface. The last one is occurrence of groundwater. The article responds to the need for knowledge of natural processes in the given area and it follows our previous papers [1], [2]. Software Gambit was used for creating a geometric model of the working area, for modeling the flow of gas it was used CFD software, Fluent from ANSYS, Inc..

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Talele, Virendra, Niranjan Sonawane, Omkar Chavan, Akash Divate, Niraj Badhe, Mirza Adil Ansar Beg, and Harshal Patil. "Aerodynamic Flow Visualisation Over Surfaces Using Smoke Separation Method from Ansys Fluent." International Journal of Innovative Science and Research Technology 5, no. 7 (July 16, 2020): 32–35. http://dx.doi.org/10.38124/ijisrt20jul108.

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In the present study, three workbench problem for turbulence modeling with high Reynolds number is used to determine the behavior of fluid flow around the surfaces. The cases for simulation is developed using Ansys workbench CFD fluent module. The computational results are obtained using solution sets of high Reynolds number with the LagrangianEulerian (LE) approach of point particle tracking system in Nevers stoke RANS Equation. The effect of flow pattern around the surface and its kinetic behavior of fluid is evaluated in post-process method of results. By observation, it has been tabulated that fluid flow separation is arousal at the corner end of all surfaces which happens due to evoking of a large adverse pressure gradient.

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Venier, Cesar Martin, Andrés Reyes Urrutia, Juan Pablo Capossio, Jan Baeyens, and Germán Mazza. "Comparing ANSYS Fluent® and OpenFOAM® simulations of Geldart A, B and D bubbling fluidized bed hydrodynamics." International Journal of Numerical Methods for Heat & Fluid Flow 30, no. 1 (September 12, 2019): 93–118. http://dx.doi.org/10.1108/hff-04-2019-0298.

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Purpose The purpose of this study is to assess the performance of ANSYS Fluent® and OpenFOAM®, at their current state of development, to study the relevant bubbling fluidized bed (BFB) characteristics with Geldart A, B and D particles. Design/methodology/approach For typical Geldart B and D particles, both a three-dimensional cylindrical and a pseudo-two-dimensional arrangement were used to measure the bed pressure drop and solids volume fraction, the latter by digital image analysis techniques. For a typical Geldart A particle, specifically to examine bubbling and slugging phenomena, a 2 m high three-dimensional cylindrical arrangement of small internal diameter was used. The hydrodynamics of the experimentally investigated BFB cases were also simulated for identical geometries and operating conditions using OpenFOAM® v6.0 and ANSYS Fluent® v19.2 at identical mesh and numerical setups. Findings The comparison between experimental and simulated results showed that both ANSYS Fluent® and OpenFOAM® provide a fair qualitative prediction of the bubble sizes and solids fraction for freely-bubbling Geldart B and D particles. For Geldart A particles, operated in a slugging mode, the qualitative predictions are again quite fair, but numerical values of relevant slug characteristics (length, velocity and frequency) slightly favor the use of OpenFOAM®, despite some deviations of predicted slug velocities. Originality/value A useful comparison of computational fluid dynamics (CFD) software performance for different fluidized regimes is presented. The results are discussed and recommendations are formulated for the selection of the CFD software and models involved.

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Nekhamin, M. M., and D. L. Bondzyk. "COMBUSTION SPEED PARAMETERS WHEN SIMULATING BY ANSYS FLUENT PROGRAM OF SOLID FUEL COMBUSTION." Energy Technologies & Resource Saving, no. 1 (March 20, 2020): 41–45. http://dx.doi.org/10.33070/etars.1.2020.5.

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The existing difference in the models used to describe the burning rate of solid fuel particles, and, accordingly, the difference in the constants appearing in them, determines the relevance of the formulation of the relation between the constants known from the literature and the parameters that must be set in programs for CFD modeling of heat and power processes. This, in particular, relates to modeling the combustion of solid fuels in the well-known program ANSYS FLUENT. The paper outlines a possible approach to solving this problem. Bibl. 5, Fig. 3.

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George, Joseph, Sheeja Janardhanan, and T. M. Sijo. "A Numerical Study on Stir Casting Process in a Metal Matrix Composite Using CFD Approach." Advanced Materials Research 1119 (July 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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Hosseini, S. A., and H. Vahedi Tafreshi. "Modeling particle-loaded single fiber efficiency and fiber drag using ANSYS–Fluent CFD code." Computers & Fluids 66 (August 2012): 157–66. http://dx.doi.org/10.1016/j.compfluid.2012.06.017.

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López, Alejandro, William Nicholls, Matthew T. Stickland, and William M. Dempster. "CFD study of Jet Impingement Test erosion using Ansys Fluent® and OpenFOAM®." Computer Physics Communications 197 (December 2015): 88–95. http://dx.doi.org/10.1016/j.cpc.2015.07.016.

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Yang, Xiu Jun, Yan Ying Xing, and Zhi Gang Shi. "Analyze Smoke Extraction Efficiency on Point Exhaust System of Side Direction for Immersed Tunnel Impact Shape of Smoke Dampers." Applied Mechanics and Materials 405-408 (September 2013): 1273–77. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.1273.

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Shape of smoke dampers is the important technical parameters for point exhaust system of side direction. This article through theoretical analysis, using CFD software Ansys Fluent by CO as tracer gas ,analysis smoke extraction efficiency for different shape of smoke dampers in order to better ensure capture efficiency. After analysis, the flat shapes of smoke dampers have better capture efficiency.

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He, Ngo Van, and Le Thi Thai. "Effect of mesh on CFD aerodynamic performances of a container ship." Tạp chí Khoa học và Công nghệ biển 20, no. 3 (July 8, 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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Hidayat, M. Fajri, and Yos Nofendri. "Pengaruh Gaya Lift Terhadap Sudut Serang Airfoil Naca 0013 dengan Ansys Fluent." Prosiding Seminar Nasional Teknoka 3 (January 11, 2019): 19. http://dx.doi.org/10.22236/teknoka.v3i0.2907.

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Dunia Kedirgantaraan di Indonesia yang semakin lesu, butuh Peneliti-peneliti bertalenta di bidang Aerodinamika agar bisa mengangkat kembali nama baik dan harga diri Bangsa. Penelitian saya kali ini bertemakan studi bidang aerodinamika dari potongan melintang sayap pesawat terbang type Airfoil NACA 0013 dengan mencari sudut serang yang tepat untuk Take Off. Tujuan Penelitian ini adalah untuk menentukan sudut serang terbaik dari Pesawat saat Take Off. Metode yang saya gunakan dengan penerapan Simulasi CFD menggunakan Software ANSYS-Fluent versi 14.5 dengan Workbench. Hasil yang di dapat dari penelitian ini akan ditabulasikan dalam tabel dan grafik hubungan antara Gaya Lift terhadap Sudut Serang. Dengan mengambil variabel sudut serang sebanyak 9 variabel yaitu 0o, 3o, 6o, 9o, 12o, 15o, 18o, 21o, dan 24o. Dari hasil Simulasi didapat Sudut Serang terbaik untuk tipe NACA 0013 adalah 21o dengan harga Gaya Lift sebesar 61,650 N.

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Abbas, Laith K., Dong Yang Chen, and Xiao Ting Rui. "Normal Force Computation for Axisymmetric Multistage Launch Vehicle." Applied Mechanics and Materials 419 (October 2013): 23–29. http://dx.doi.org/10.4028/www.scientific.net/amm.419.23.

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The increased demand upon the aeroelastician to obtain the distributed aerodynamic normal force loads for arbitrary launch vehicle configurations necessitated accurate method. In this work, computational fluid dynamics (CFD) is used for the determining the distributed aerodynamic loads of an axisymmetric multistage launch vehicle in the linear angle-of-attack range. ICEM-CFD and ANSYS-FLUENT software are implemented for the meshing and computational analysis. About 2750 iterations were used for the simulation purpose. Computational results are compared to available experimental data. In general, a good result within engineering error margins is obtained.

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Stęchły, Katarzyna, Gabriel Wecel, and Derek B. Ingham. "CFD modelling of air and oxy-coal combustion." International Journal of Numerical Methods for Heat & Fluid Flow 24, no. 4 (April 29, 2014): 825–44. http://dx.doi.org/10.1108/hff-02-2013-0066.

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Purpose – The main goal of this work was the CFD analysis of air and oxy-coal combustion, in order to develop a validated with experimental measurements model of the combustion chamber. Moreover, the purpose of this paper is to provide information about limitations of the sub-models implemented in commercial CFD code ANSYS Fluent version 13.0 for the oxy-coal combustion simulations. The influence of implementation of the weighted sum of gray gas model (WSGGM) with coefficients updated to oxy-coal combustion environment has been investigated. Design/methodology/approach – The sub-models validated with experimental measurements model for the air combustion has been used to predict the oxy-coal combustion case and subsequently the numerical solutions have been compared with the experimental data, which enclose the surface incident radiation (SIR) and the flue gas temperature. To improve the numerical prediction of the oxy-coal combustion process the own routine for calculating properties of the oxy-combustion product has been implemented. Findings – The results of numerical simulation of combustion in the air environment fitted within the experimental measurements accuracy. However, the air combustion sub-models implemented for the oxy-coal combustion simulations does not predict the SIR within the experimental data accuracy. The implementation of own routine, which uses the coefficients calculated for oxy-coal combustion environment shows improvement in numerical prediction of oxy-coal combustion. Originality/value – The radiative properties of gases in the combustion chamber during oxy-coal combustion calculated using the WSGGM implemented in ANSYS Fluent 13.0 do not predict the SIR within experimental measurement accuracy, however, implementation of WSGGM with updated coefficients provide a reasonable improvement in numerical prediction of SIR in the oxy-coal combustion.

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An, Jian Qi, Kai Peng, Wei Hua Cao, and Min Wu. "Modeling of High Temperature Gas Flow 3D Distribution in BF Throat Based on the Computational Fluid Dynamics." Journal of Advanced Computational Intelligence and Intelligent Informatics 19, no. 2 (March 20, 2015): 269–76. http://dx.doi.org/10.20965/jaciii.2015.p0269.

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This paper aims at building a Computational Fluid Dynamics (CFD) model which can describe the gas flow three dimensions (3D) distribution in blast furnace (BF) throat. Firstly, the boundary conditions are obtained by rebuilding central gas flow shape in BF based on computer graphics. Secondly, the CFD model is built based on turbulent model by analyzing the features of gas flow. Finally, a method which can get the numerical solutions of the model is proposed by using CFD software ANSYS/FLUENT. The proposed model can reflect the changes of the gas flow distribution, and can help to guide the operation of furnace burdening and to ensure the BF stable and smooth production.

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Zhang, De Sheng, Ji Yun Zhao, Zhan Xu, and Zhen Xing Wang. "Strength Analysis of Dual-Chamber Hydrodynamic Coupling Based on One Way FSI." Applied Mechanics and Materials 34-35 (October 2010): 105–10. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.105.

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In order to improve the accuracy of stress analysis of blade wheels, one way Fluid- Structure Interaction method was introduced based on the comparisons of existing methods. Finite element analysis software ANSYS along with CFD software FLUENT were comprehensively used for the strength analysis of dual-chamber couplings. According to the simulation results from CFD, the node loads at the interface of pump wheel and the working fluid were obtained and the torque and axial force were predicated. Then the static stress of pump wheel was analyzed with ANSYS. The detail processes were described in this paper. The results show that the blades of pump wheel is loaded by alternating forces, and the maximum stress, which is 64MPa, locates at the junction area of the blades and shell. And the coupling analyzed in this study meets the strength requirement.

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Velísková, Yvetta, Zdeněk Chára, Radoslav Schügerl, and Renáta Dulovičová. "CFD simulation of flow behind overflooded obstacle." Journal of Hydrology and Hydromechanics 66, no. 4 (December 1, 2018): 448–56. http://dx.doi.org/10.2478/johh-2018-0028.

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Abstract This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Standard k-ω and Reynolds stress models (ANSYS Fluent v.18) and experimental measurements in a laboratory flume (using ADV) were performed. Results of both approaches showed and affirmed presence of velocity profile deformation behind the obstacle, but some discrepancies between the measured and simulated values were also observed. With increasing distance from the obstacle, the differences between the simulation and the measured data increase and the results of the numerical models are no longer usable.

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Rimár, Miroslav, Andrii Kulikov, Marcel Fedak, and Milan Abraham. "CFD analysis of the ventilation heating system." Mechanics & Industry 20, no. 7 (2019): 708. http://dx.doi.org/10.1051/meca/2020020.

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Air conditioning is a significant part of the contemporary life. A lot of the medical papers confirmed the influence of the thermal comfort to the operability. The aim of the article is to understand the system of the building ventilation with the HRV unit. For this purpose, the CFD simulation model was elaborated. The ANSYS Fluent allows to calculate the heat balance of the room with secondary thermal gains like computers, monitors and humans. The results of the simulation approved that in the modern thermal passive houses heat balance calculations should take into account secondary thermal gains from the installed equipment. Also the air circulation in the closed area and the influence of the different barriers installed in the laboratory were investigated.

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Abohela, Islam, Elsa Aristodemou, Abas Hadawey, and Raveendran Sundararajan. "Assessing the Horizontal Homogeneity of the Atmospheric Boundary Layer (HHABL) Profile Using Different CFD Software." Atmosphere 11, no. 10 (October 21, 2020): 1138. http://dx.doi.org/10.3390/atmos11101138.

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One of the main factors affecting the reliability of computational fluid dynamics (CFD) simulations for the urban environment is the Horizontal Homogeneity of the Atmospheric Boundary Layer (HHABL) profile—meaning the vertical profiles of the mean streamwise velocity, the turbulent kinetic energy, and dissipation rate are maintained throughout the streamwise direction of the computational domain. This paper investigates the preservation of the HHABL profile using three different commercial CFD codes—the ANSYS Fluent, the ANSYS CFD, and the Siemens STAR-CCM+ software. Three different cases were considered, identified by their different inlet conditions for the inlet velocity, turbulent kinetic energy, and dissipation rate profiles. Simulations were carried out using the RANS k-ε turbulence model. Slight variations in the eddy viscosity models, as well as in the wall boundary conditions, were identified in the different software, with the standard wall function with roughness being implemented in the Fluent applications, the scalable wall function with roughness in the CFX applications, and the blended wall function option in the STAR-CCM+ simulations. There was a slight difference in the meshing approach in the three different software, with a prism-layer option in the STAR-CCM+ software, which allowed a finer mesh near the wall/ground boundary. The results show all three software are able to preserve the horizontal homogeneity of the ABL—less than 0.5% difference between the software—indicating very similar degrees of accuracy.

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Romsy, Tomas, and Pavel Zacha. "CFD SIMULATION OF UPWARD SUBCOOLED BOILING FLOW OF FREON R12." Acta Polytechnica CTU Proceedings 4 (December 16, 2016): 73. http://dx.doi.org/10.14311/ap.2016.4.0073.

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Subcooled flow boiling under forced convection occurs in many industrial applications of purpose to maximize heat removal from the heat source by the very large heat transfer coefficient. This work deals with CFD simulations of the subcooled flow boiling of refrigerant R12 solved by code ANSYS FLUENT r16. The main objective of this paper is verification of used numerical settings on relevant experiments performed on DEBORA test facility. Also comparisons with previously provided simulation on NRI Rez are presented. Data outputs from this work are basis to subsequent calculations of steam-water mixture cooling of Pb-Li eutectic.

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Magier, Mariusz, and Tomasz Merda. "A MODIFIED MODEL OF EXTERNAL BALLISTICS FOR SUPERSONIC MORTAR PROJECTILES." PROBLEMY TECHNIKI UZBROJENIA 144, no. 4 (February 27, 2018): 97–107. http://dx.doi.org/10.5604/01.3001.0011.5829.

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Basic models applied for analysing and modelling the flight parameters of projectiles were disscussed in the article. A modified model with five degrees of freedom and neglection of the sixth one, representing the projectile rotation speed, is proposed by authors on the basis of conducted analysis to analyse flight parameters of a supersonic mortar projectile. To obtain the coefficients required in the modified model the CFD methods (ANSYS FLUENT software) were used.

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Vu, Anh Ngoc, and Tung Nguyen Minh Huynh. "An automated analysis process for vertical axis wind turbine." Science and Technology Development Journal 18, no. 4 (December 30, 2015): 145–52. http://dx.doi.org/10.32508/stdj.v18i4.1000.

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This paper presents an automated process for analyzing the performance of vertical axis wind turbine (VAWT). The details of this process will be demonstrated, which include the airfoil geometry representation using CST method, a hybrid meshing process combining structured grids and unstructured grids, CFD calculation process and processing data results to calculate the power coefficient of VAWT. These processes are designed as separate modules. CFD methods used in this research is RANS 2D using Realizable k  turbulence model. Meshing process will be done on the GAMBIT software, the CFD calculations are done on commercial ANSYS FLUENT software and these processes are controlled by mathematical software MATLAB. The formulas used to calculate the power coefficient will be also introduced in this paper.

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Rama Chandra Manohar, K., Somagani Upendar, V. Durgesh, B. Sandeep, Ksk Rahim mallik, Gurram Narendra Santosh Kumar, and Sk Hasane Ahammad. "Modeling and Analysis of Kaplan Turbine Blade Using CFD." International Journal of Engineering & Technology 7, no. 3.12 (July 20, 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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Permatasari, Rosyida, Tholudin Mat Lazim, Tono Sukarnoto, and Supriyadi. "Fluidization of Gas-Solid in Atmospheric Bubbling Fluidized Bed Combustor." Applied Mechanics and Materials 819 (January 2016): 265–71. http://dx.doi.org/10.4028/www.scientific.net/amm.819.265.

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The fluidization behavior of a non-reactive gas-solid in the ABFBC was studied. Experiments were conducted using laser based Particle Imaged Velocimetry (PIV) with B Geldart silica sand (diameter, Ø = 300 – 425 μm) in 2 m high cylindrical combustion chamber. The PIV was used to determine the particle velocity distribution in the combustion chamber. The experiments established the distribution of the sand along the height of the combustion chamber. Consequently, 3D CFD simulations were conducted using ANSYS FLUENT 13.0 software, of which their results were compared with the experimental counterpart. The comparison between the results of the developed CFD models and the experimental data showed very close agreement.

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Ngadi, Zakia, and Mohamed Lhassan Lahlaouti. "Coal and Biomass Co-Combustion: CFD Prediction of Velocity Field for Multi-Channel Burner in Cement Rotary Kiln." Proceedings 63, no. 1 (December 11, 2020): 18. http://dx.doi.org/10.3390/proceedings2020063018.

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This paper represents the medialization of alternative fuels co-combustion, in a cement rotary kiln, established on the commercial computational fluid dynamic (CFD) software ANSYS FLUENT. The focus is placed on the key issues in the flow field, mainly on how they are affected by turbulence models and co-processing conditions. Real data, from a Moroccan cement plant, are used for model input. The simulation results have shown a potential effect of the physics model on turbulent and gas-solid flow prediction. The CFD results can be taken as a guideline for improved co-processing burner design and reduce the effect of using alternative fuels.

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Wu, Yi Yi, Xiao Gang Yang, Xiao Bing Huang, Vincent Barrioz, Shafiul Monir, Stuart Irvine, and Giray Kartopu. "CFD Modelling of Cadmium Telluride (CdTe) Thin Film Coating with Inline AP-MOCVD." Applied Mechanics and Materials 217-219 (November 2012): 1265–73. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.1265.

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A CFD numerical model has been established to study the growth of cadmium telluride (CdTe) on substrate using metalorganic chemical vapour deposition technique in atmospheric pressure (AP-MOCVD) and hydrodynamics in an inline MOCVD reactor. The numerical simulations have been conducted using the CFD code – ANSYS Fluent. Dimethylcadmium (DMCd) and diisopropyltelluride (DIPTe) have been employed as precursors while H2 is acting as the carrier gas. In order to assess the effect of various conditions on CdTe film growth and uniformity, heat transfer and mass transport behaviours of the chemical species in the reactor have been fully investigated. In addition, material utilization and fluid dynamics in the reactor are also discussed.

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Journal articles on the topic 'CFD ANSYS Fluent'

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