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Journal articles on the topic 'CFD design'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

CHO, SU K., and VAMSHI M. KORIVI. "PORT DESIGN OPTIMIZATION USING CFD ANALYSIS." Journal of Advanced Manufacturing Systems 03, no. 01 (June 2004): 21–32. http://dx.doi.org/10.1142/s0219686704000375.

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Shape of ports that are part of an engine cylinder head is vital to engine performance and emissions. The advance of CFD (Computation Fluid Dynamics) analysis technology helps designers run the simulation to improve the port design and to provide the better model for a flow bench test. This paper presents the automation of design optimization process integrating CAD modeling, mesh generation and CFD simulation.

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2

Burger, C. J., S. J. van der Spuy, and T. W. von Backström. "Design of a Compact Crossover Diffuser for Micro Gas Turbines Using a Mean-Line Code." International Journal of Turbo & Jet-Engines 36, no. 4 (November 18, 2019): 347–57. http://dx.doi.org/10.1515/tjj-2017-0021.

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Abstract The design and validation of a Compact Crossover Diffuser (CCD) to replace the size-limited radial diffuser and axial de-swirl cascade of an existing Micro Gas Turbine (MGT) is discussed. A CCD strives to combine the performance of a channel diffuser with the operating range and efficiency of a vaneless diffuser. The development of a one-dimensional Mean-Line Code (MLC) is presented, which aids the designer in preliminary design and performance evaluation of the CCD. Design graphs indicating the performance effects of changing the primary design variables are developed and shown. The MLC is numerically validated using Computational Fluid Dynamics (CFD). Good agreement is seen between the MLC and CFD results, predicting the design point PRss(2-4) to within 1.4 %. A CFD optimized CCD was manufactured and tested. Agreement between the CFD and experimental results for PRts(0-4) is within 7.58 % at 106 kRPM. A numerically predicted increase in PRts(0-4) from 3.31, to 3.53, to 3.83 is seen for the vaneless-, MLC optimized-, and CFD optimized-design respectively. An experimental increase of 82.3 % in engine thrust and 80.0 % in total-to-static pressure recovery across the compressor stage was measured when retrofitting the BMT120KS with a new impeller and CCD.

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3

TAKAI, Michio. "CFD in Ship Design." Journal of the Society of Mechanical Engineers 105, no. 999 (2002): 82–85. http://dx.doi.org/10.1299/jsmemag.105.999_82.

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4

van Driel, Michael R. "Cardioplegia heat exchanger design modelling using computational fluid dynamics." Perfusion 15, no. 6 (December 2000): 541–48. http://dx.doi.org/10.1177/026765910001500611.

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A new cardioplegia heat exchanger has been developed by Sorin Biomedica. A three-dimensional computer-aided design (CAD) model was optimized using computational fluid dynamics (CFD) modelling. CFD optimization techniques have commonly been applied to velocity flow field analysis, but CFD analysis was also used in this study to predict the heat exchange performance of the design before prototype fabrication. The iterative results of the optimization and the actual heat exchange performance of the final configuration are presented in this paper. Based on the behaviour of this model, both the water and blood fluid flow paths of the heat exchanger were optimized. The simulation predicted superior heat exchange performance using an optimal amount of energy exchange surface area, reducing the total contact surface area, the device priming volume and the material costs. Experimental results confirm the empirical results predicted by the CFD analysis.

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Lin, Chen-Jiann, Tseng-Hsiang Tse, Liu-Cheng Che, and Liang-Ming Tsai. "Computer aided design and analysis on distributors in DAC columns." MATEC Web of Conferences 185 (2018): 00024. http://dx.doi.org/10.1051/matecconf/201818500024.

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Dynamic axial compression (DAC) columns are key elements in simulated moving bed, which is a chromatography process in drug industry and chemical engineering. In this study, rules for designing distributors are proposed based on mass conservation and validated by experiments, the computer aided design (CAD) and the computational fluid dynamics (CFD). Experimental works are conducted to choose feasible numerical parameters for simulations. In CFD, the transient laminar flow fields are governed by the momentum and species transport equations with Darcy's law to model the porous zone in the packed bed. Results show that CFD combined with CAD solid modelling is a good approach to explore detailed flow fields in DAC columns and carry out parameter analysis for innovative designs. For further testing and evaluation, a new model of compound distributor is designed, 3D printed and processed in factory for practical applications in preparative chromatography.

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6

Guo, Zhong Quan, Jian Xia Liu, and Wen Cai Luo. "Parametric Modeling and Simulation for Aerodynamic Design of Launch Vehicle." Applied Mechanics and Materials 101-102 (September 2011): 697–701. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.697.

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Aerodynamic design of launch vehicle is facing combinatorial explosion problem caused by modular design. In order to get basic feasible solution from huge design space, the efficiency of design and simulation must be improved. In this paper, a parametric modeling and simulation method is proposed, which is based on CAD/CFD tools. Firstly, the design Variables of the launch vehicle are divided into three categories: size parameters, configuration parameters and mesh parameters. Secondly, parametric geometry model, including size and configuration parameters, is obtained by secondary development of Pro/ENGINEER. Thirdly, parametric mesh files for CFD are generated by implementing CFD-GEOM with scripts written in Python. By specifying boundary conditions through command stream of GAMBIT, FLUENT software will run automatically to calculate the aerodynamic performance of the launch vehicle. Finally, a graphical user interface (GUI) is developed using VC++6.0. With this system, the integration of CAD/CFD application is achieved. As long as designers enter certain design parameters in the GUI, they will quickly achieve 3D geometry model and aerodynamic performance of the launch vehicle. Application examples show that, this system can significantly improve the efficiency of aerodynamic design of the launch vehicle, and the data error between simulation and experiment is less than 10%, which is acceptable.

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7

A., Aswandi, B. L. Syaefullah, D. A. Iyai, and M. Jen Wajo. "UTILIZATION OF CARBOHYDRATE POTENTIAL IN VARIOUS KINDS OF BANANA COB FLOUR BANANA IN KACANG GOATS." IRAQI JOURNAL OF AGRICULTURAL SCIENCES 53, no. 4 (August 30, 2022): 732–42. http://dx.doi.org/10.36103/ijas.v53i4.1583.

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The objective of this research was to observe the productivity in kacang goats which were given a complete feed containing flour of various types of banana plant weevils. The material studied in this study was six complete types of feed. Complete feed containing weevil flour from 5 banana plant varieties. Complete feed is prepared with a complete feed composition. The cattle used were 18 male bean goats, mean initial body weight, 15.42 ± 1.98 kg (CV: 13.73%) aged 10-15 months. Livestock is given complete feed containing banana weevil flour for 60 days. The cage is 12 m x 6m in size, construction has a floor platform as high as 140 cm, the enclosure is 1 x 1 m in size and 130 cm in height, equipped with a drinking area. The treatment was in the form of 6 complete types of feed with different formulations, consisting of CF0, CF1, CF2, CF3, CF4, and CF5 containing banana weevil flour with different varieties and control treatment (CF0). The research design used was a completely randomized design with five treatments of complete feed formulas containing hump flour of various banana varieties.The results of the research that the complete feed formulation containing Batu banana hump flour (CF2) and Kapok (CF3) produced the best productivity and performance response of Kacang goat. compared to treatment; CF0 CF1; CF4 and CF5.

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8

Cervantes, Michel J., and T. Fredrik Engstro¨m. "Factorial Design Applied to CFD." Journal of Fluids Engineering 126, no. 5 (September 1, 2004): 791–98. http://dx.doi.org/10.1115/1.1792277.

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Factorial design, a statistical method widely used for experiments, and its application to CFD are discussed. The aim is to propose a systematic, objective, and quantitative method for engineers to design a set of simulations in order to evaluate main and joint effects of input parameters on the numerical solution. The input parameters may be experimental uncertainty on boundary conditions, unknown boundary conditions, grid, differencing schemes, and turbulence models. The complex flow of the Turbine-99 test case, a hydropower draft tube flow, is used to illustrate the method, where four factors are chosen to perform a 24 factorial design. The radial velocity at the inlet (not measured) is shown to have an important influence on the pressure recovery (7%) and the energy loss factor (49%).

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9

Hornsby, Craig. "CFD — driving pump design forward." World Pumps 2002, no. 431 (August 2002): 18–22. http://dx.doi.org/10.1016/s0262-1762(02)80195-x.

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10

Cortella, Giovanni. "cfd-aided retail cabinets design." Computers and Electronics in Agriculture 34, no. 1-3 (May 2002): 43–66. http://dx.doi.org/10.1016/s0168-1699(01)00179-x.

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11

Aksamija, E., R. Prieler, K. Zörweg, A. Pfennig, and M. Siebenhofer. "CFD-gestütztes Design von Drehscheibenextraktoren." Chemie Ingenieur Technik 84, no. 8 (July 25, 2012): 1262. http://dx.doi.org/10.1002/cite.201250400.

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12

Quraishi, Mohd Mohiuddin, Mohd Abdul Razakh, and Shivasri Chithaluri. "Design and CFD Analysis of Parametric Winglets." SIJ Transactions on Advances in Space Research & Earth Exploration 4, no. 2 (April 8, 2016): 7–14. http://dx.doi.org/10.9756/sijasree/v4i2/04010020101.

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13

Zhu, Limin, Xiaolei Gong, Jinlong Liu, Youjin Li, Yumin Zhong, Juanya Shen, and Zhuoming Xu. "Computational Evaluation of Surgical Design for Multisegmental Complex Congenital Tracheal Stenosis." BioMed Research International 2020 (April 21, 2020): 1–10. http://dx.doi.org/10.1155/2020/3509814.

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Multisegmental complex congenital tracheal stenosis (CTS) is an uncommon but potentially life-threatening malformation of the airway. Staged surgery is indicated for the complex pathophysiology of the abnormal trachea. Surgical intervention to fix the stenotic segments may result in different postoperative outcomes. However, only few studies reported the design of surgical correction for multisegmental CTS. We used computer-aided design (CAD) to simulate surgical correction under different schemes to develop a patient-specific tracheal model with two segmental stenoses. Computational fluid dynamics (CFD) was used to compare the outcomes of different designs. Aerodynamic parameters of the trachea were evaluated. An obvious interaction was found between the two segments of stenosis in different surgical designs. The surgical corrective order of stenotic segments greatly affected the aerodynamic parameters and turbulence flows downstream of tracheal stenosis and upstream of the bronchus. Patient-specific studies using CAD and CFD minimize the risk of staged surgical correction and facilitate quantitative evaluation of surgical design for multiple segments of complex CTS.

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14

Li, Lei, Yongsheng Ma, and Carlos F. Lange. "Association of Design and Simulation Intent in CAD/CFD Integration." Procedia CIRP 56 (2016): 1–6. http://dx.doi.org/10.1016/j.procir.2016.10.006.

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15

Denton, J. D., and W. N. Dawes. "Computational fluid dynamics for turbomachinery design." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 213, no. 2 (February 1, 1998): 107–24. http://dx.doi.org/10.1243/0954406991522211.

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Computational fluid dynamics (CFD) probably plays a greater part in the aerodynamic design of turbomachinery than it does in any other engineering application. For many years the design of a modern turbine or compressor has been unthinkable without the help of CFD and this dependence has increased as more of the flow becomes amenable to numerical prediction. The benefits of CFD range from shorter design cycles to better performance and reduced costs and weight. This paper presents a review of the main CFD methods in use, discusses their advantages and limitations and points out where further developments are required. The paper is concerned with the application of CFD and does not describe the numerical methods or turbulence modelling in any detail.

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16

Pieritz, Romeu Andr�, Rafael Mendes, Rodrigo F. A. F. da Silva, and Clovis R. Maliska. "CFD studio: An educational software package for CFD analysis and design." Computer Applications in Engineering Education 12, no. 1 (2004): 20–30. http://dx.doi.org/10.1002/cae.10055.

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17

Schweitzer, Jean, and Jeya Gandham. "Computational Fluid Dynamics in Torque Converters: Validation and Application." International Journal of Rotating Machinery 9, no. 6 (2003): 411–18. http://dx.doi.org/10.1155/s1023621x03000393.

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This article describes some of the computational fluid dynamics (CFD) work being done on three-element torque converters using a commercially available package CFX TASCflow. The article details some of the work done to validate CFD results and gives examples of ways in which CFD is used in the torque-converter design process. Based on the validation study, it is shown that CFD can be used as a design and analysis tool to make decisions about design direction. Use of CFD in torque converters is a developing field. Thus, more work needs to be done before the requirement of hardware to validate designs can be fully eliminated. This article demonstrates the confidence level in torque converter CFD and demonstrates how it can be used to assist torqueconverter design today.

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18

Nakano, M., T. Yaguti, K. Fukunaga, Funakubo, and Y. Fukui. "CFD analysis on heat exchange design." Journal of Life Support Engineering 17, Supplement (2005): 180. http://dx.doi.org/10.5136/lifesupport.17.supplement_180.

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19

KAIDEN, Takeshi. "CFD Application on Aerospace Vehicle Design." Journal of the Society of Mechanical Engineers 105, no. 999 (2002): 78–81. http://dx.doi.org/10.1299/jsmemag.105.999_78.

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20

Srividya, Kambala, and Basavapatna Srikantia Thandaveswara. "CFD ANALYSIS FOR SEA-CHEST DESIGN." ISH Journal of Hydraulic Engineering 11, no. 2 (January 2005): 58–72. http://dx.doi.org/10.1080/09715010.2005.10514781.

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21

Paynter, Gerald C. "CFD technology for hypersonic vehicle design." Computers & Structures 30, no. 1-2 (January 1988): 39–46. http://dx.doi.org/10.1016/0045-7949(88)90212-x.

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22

Kovacevic, Ahmed, Nikola Stosic, Elvedin Mujic, and Ian K. Smith. "CFD Integrated Design of Screw Compressors." Engineering Applications of Computational Fluid Mechanics 1, no. 2 (January 2007): 96–108. http://dx.doi.org/10.1080/19942060.2007.11015185.

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23

El-Sadi, Haifa. "Aircraft Design Analysis, CFD and manufacturing." International Journal of Advanced Network, Monitoring and Controls 1, no. 2 (2016): 59–67. http://dx.doi.org/10.21307/ijanmc-2016-017.

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24

Aubin, J., D. F. Fletcher, and C. Xuereb. "Design of micromixers using CFD modelling." Chemical Engineering Science 60, no. 8-9 (April 2005): 2503–16. http://dx.doi.org/10.1016/j.ces.2004.11.043.

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25

Crocker, D. S., E. J. Fuller, and C. E. Smith. "Fuel Nozzle Aerodynamic Design Using CFD Analysis." Journal of Engineering for Gas Turbines and Power 119, no. 3 (July 1, 1997): 527–34. http://dx.doi.org/10.1115/1.2817017.

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The aerodynamic design of airflow passages in fuel injection systems can be significantly enhanced by the use of CFD analysis. Attempts to improve the efficiency of the fuel nozzle design process by using CFD analyses have generally been unsuccessful in the past due to the difficulties of modeling swirling flow in complex geometries. Some of the issues that have been obstacles to successful and timely analysis of fuel nozzle aerodynamics include grid generation, turbulence models, and definition of boundary conditions. This study attempts to address these obstacles and demonstrate a CFD methodology capable of modeling swirling flow within the internal air passages of fuel nozzles. The CFD code CFD-ACE was used for the analyses. Results of nonreacting analyses and comparison with experimental data are presented for three different fuel nozzles. The three nozzles have distinctly different designs (including axial and radial inflow swirlers) and thus demonstrate the flexibility of the design methodology. Particular emphasis is given to techniques involved in predicting the effective flow area (ACd) of the nozzles. Good agreement between CFD predictions of the ACd (made prior to experiments) and the measured ACd was obtained. Comparisons between predicted and measured velocity profiles also showed good agreement.

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26

HIRANO, Toshiyuki, Toshio OTAKA, and Gaku MINORIKAWA. "3D-CAD and CFD Design Education Using a Micro Axial Fan." Proceedings of the Tecnology and Society Conference 2017 (2017): 243. http://dx.doi.org/10.1299/jsmetsd.2017.243.

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27

Ilie, K., and A. Subic. "Parametric modelling of helical rotors for efficient design of twin-screw superchargers." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 221, no. 2 (February 1, 2007): 267–72. http://dx.doi.org/10.1243/0954406jmes421ft.

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The parametric three-dimensional geometric model of twin-screw supercharger rotors of any aspect ratio was developed. For model validation through visualization, computer-aided design (CAD) rotor models with scalable data were generated in commercial CAD software and calibrated experimentally by laser Doppler velocimetry (LDV) tests. Calibrated rotor profile data can be transferred into CAD-CFD interface for flow simulation for performance optimization.

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28

Heijmans, Ad. "The Right Mix." Mechanical Engineering 131, no. 03 (March 1, 2009): 46–48. http://dx.doi.org/10.1115/1.2009-mar-5.

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This review explores the use of computation fluid dynamics (CFD) tools embedded in its computer-aided design (CAD) software to create a right mix of gas and air for a wide range of applications. The new tools provide the ability to evaluate the performance of many potential alternatives in the initial stages of the design process. Early stage analysis makes it possible to improve the performance of the product and resolve design problems quickly and before large sums have been spent on a design that must be changed. The review also discusses that several best practices can help ensure the accuracy of CFD gas and air mixing simulation. The utilization of native 3D data places a premium on the quality of the solid model. The newest generation of CFD software contains sophisticated automatic control functions that make it possible to converge to a solution in almost every application without the need for manual tuning. CFD simulation in the preliminary stages in the design of products involving gas mixing can save time and money. Best practices tuned for the requirements of a particular industry can help design engineers avoid analysis mistakes.

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29

Huang, Jing Feng, and Bai Wei Feng. "Investigation on Optimization Strategies for the Hydrodynamic Design of DTMB 5415." Advanced Materials Research 479-481 (February 2012): 1950–54. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1950.

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The paper contributes to the field of ship design by investigating the applicability of formal strategies to the optimization of a ship’s hydrodynamic performance. A study on the geometric modeling, hydrodynamic analysis, design evaluation and shape variation of a DTMB5415 is presented. Optimization Algorithm is utilized to explore the design space and to improve the hull shape. The hydrodynamic design process is implemented: An advanced parametric modeling kernel is applied for efficient form generation and variation. The hydrodynamic performance is analyzed by state-of-the-art Computational Fluid Dynamics (CFD) codes for calm water resistance. A commercial optimization system is used to integrate the various CAD and CFD tools and to carry out the optimization.

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30

Bartoldson, Brian, Rui Wang, Yucheng Fu, David Widemann, Sam Nguyen, Jie Bao, Zhijie Xu, and Brenda Ng. "Latent Space Simulation for Carbon Capture Design Optimization." Proceedings of the AAAI Conference on Artificial Intelligence 36, no. 11 (June 28, 2022): 12447–53. http://dx.doi.org/10.1609/aaai.v36i11.21511.

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The CO2 capture efficiency in solvent-based carbon capture systems (CCSs) critically depends on the gas-solvent interfacial area (IA), making maximization of IA a foundational challenge in CCS design. While the IA associated with a particular CCS design can be estimated via a computational fluid dynamics (CFD) simulation, using CFD to derive the IAs associated with numerous CCS designs is prohibitively costly. Fortunately, previous works such as Deep Fluids (DF) (Kim et al., 2019) show that large simulation speedups are achievable by replacing CFD simulators with neural network (NN) surrogates that faithfully mimic the CFD simulation process. This raises the possibility of a fast, accurate replacement for a CFD simulator and therefore efficient approximation of the IAs required by CCS design optimization. Thus, here, we build on the DF approach to develop surrogates that can successfully be applied to our complex carbon-capture CFD simulations. Our optimized DF-style surrogates produce large speedups (4000x) while obtaining IA relative errors as low as 4% on unseen CCS configurations that lie within the range of training configurations. This hints at the promise of NN surrogates for our CCS design optimization problem. Nonetheless, DF has inherent limitations with respect to CCS design (e.g., limited transferability of trained models to new CCS packings). We conclude with ideas to address these challenges.

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31

Goto, Akira, Motohiko Nohmi, Takaki Sakurai, and Yoshiyasu Sogawa. "Hydrodynamic Design System for Pumps Based on 3-D CAD, CFD, and Inverse Design Method." Journal of Fluids Engineering 124, no. 2 (May 28, 2002): 329–35. http://dx.doi.org/10.1115/1.1471362.

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A computer-aided design system has been developed for hydraulic parts of pumps including impellers, bowl diffusers, volutes, and vaned return channels. The key technologies include three-dimensional (3-D) CAD modeling, automatic grid generation, CFD analysis, and a 3-D inverse design method. The design system is directly connected to a rapid prototyping production system and a flexible manufacturing system composed of a group of DNC machines. The use of this novel design system leads to a drastic reduction of the development time of pumps having high performance, high reliability, and innovative design concepts. The system structure and the design process of “Blade Design System” and “Channel Design System” are presented. Then the design examples are presented briefly based on the previous publications, which included a centrifugal impeller with suppressed secondary flows, a bowl diffuser with suppressed corner separation, a vaned return channel of a multistage pump, and a volute casing. The results of experimental validation, including flow fields measurements, were also presented and discussed briefly.

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Alawadhi, Khaled, Yousef Alhouli, Ali Ashour, and Abdullah Alfalah. "Design and Optimization of a Radial Turbine to Be Used in a Rankine Cycle Operating with an OTEC System." Journal of Marine Science and Engineering 8, no. 11 (October 29, 2020): 855. http://dx.doi.org/10.3390/jmse8110855.

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Design and optimization of a radial turbine for a Rankine cycle were accomplished ensuring higher thermal efficiency of the system despite the low turbine inlet temperature. A turbine design code (TDC) based on the meanline design methodology was developed to construct the base design of the turbine rotor. Best design practices for the base design were discussed and adopted to initiate a robust optimization procedure. The baseline design was optimized using the response surface methodology and by coupling it with the genetic algorithm. The design variables considered for the study are rotational speed, total to static speed ratio, hub radius ratio, shroud radius ration, and number of blades. Various designs of the turbine were constructed based on the Central Composite Design (CCD) while performance variables were computed using the in-house turbine design code (TDC) in the MATLAB environment. The TDC can access the properties of the working fluid through a subroutine that links NIST’s REFPROP to the design code through a subroutine. The finalization of the geometry was made through an iterative process between 3D-Reynolds-Averaged Navier-Stokes (RANS) simulations and the one-dimensional optimization procedure. 3D RANS simulations were also conducted to analyze the optimized geometry of the turbine rotor for off-design conditions. For computational fluid dynamics (CFD) simulation, a commercial code ANSYS-CFX was employed. 3D geometry was constructed using ASYS Bladegen while structured mesh was generated using ANSYS Turbogrid. Fluid properties were supplied to the CFD solver through a real gas property (RGP) file that was constructed in MATLAB by linking it to REFPROP. Computed results show that an initial good design can reduce the time and computational efforts necessary to reach an optimal design successfully. Furthermore, it can be inferred from the CFD calculation that Response Surface Methodology (RSM) employing CFD as a model evaluation tool can be highly effective for the design and optimization of turbomachinery.

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Agonafer, D., and A. Vimba. "Solid Model Based Preprocessor to CFD Code for Applications to Electronic Cooling Systems." Journal of Electronic Packaging 119, no. 2 (June 1, 1997): 138–43. http://dx.doi.org/10.1115/1.2792220.

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The use of a solid model based Computer Aided Design (CAD) tool as a preprocessor to a finite control-volume based Computational Fluid Dynamics (CFD) code is presented. Preprocessing includes geometry description, grid generation, definition of material properties, application of boundary conditions, and definition of solution control parameters. The CAD based preprocessor, as opposed to traditional finite control-volume preprocessors, provides the above capabilities in a powerful graphic environment. Using a solid model based CAD tool, work is reduced, and visualization is enhanced employing the capabilities of the three-dimensional solid modeler. In addition, a technique which categorizes control volumes into groups comprising the solid and fluid portions of the problem domain is presented. At the completion of preprocessing, a model appropriate as input to a CFD code is generated. This model is then solved using the CFD program. The process is shown in a tutorial form by considering a two-dimensional turbulent flow problem in an electronic card on board package. Although the methodology shown in this paper focuses on specific CFD and Solid Model programs, the concept can readily be applied to other CFD and/or Solid Model programs.

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34

Azike, N. D., and S. O. Onyegegbu. "Design modification and CFD formulation of 1D3D mechanical cyclone for optimal particle collection efficiency." Nigerian Journal of Technology 40, no. 5 (May 13, 2022): 817–28. http://dx.doi.org/10.4314/njt.v40i5.7.

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Standard 1D3D mechanical cyclone with standard inlet velocity of 16m/s and cylinder diameter of 0.1524m was modified using Downhill simplex method to develop four modified cyclone designs. Computational Fluid Dynamics (CFD) formulation involving model design, meshing, CFD simulation and postprocessing was carried out on the mechanical cyclones. ANSYS Fluent software was used for the CFD formulation using fine mesh of the default minimum mesh size of the CFD mesher. Cornstarch was used as inlet particulate matter. Reynolds Stress Turbulence Model (RSTM) was used to model the swirling turbulent flow while Discrete Phase Model (DPM) was used to track about 10,000 particles through the simulated cyclones. The DPM result of each mechanical cyclone was used to calculate it’s CFD, particle collection efficiency result. Standard 1D3D mechanical cyclone obtained particle collection efficiency result of 87.38% using cornstarch and default minimum mesh size for CFD simulation while modified 1D3D mechanical cyclone one (1) recorded the optimal CFD particle collection efficiency result among modified 1D3D mechanical cyclones with 94.00%. Its convergence iteration point also showed improvement in simulation time compared to the standard 1D3D mechanical cyclone. Consequently, it was concluded that, design modification in line with CFD formulation offers an alternative and powerful approach to modeling 1D3D mechanical cyclones performance.

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Ali, Yazen Munaf, Dr Saad Nahi Saleh, Wameed Abdulhassan Ayash, Saramd Zaki Ghani, and Sudad Adil Salih. "Design and CFD Simulation of Knockout Drum." Journal of Petroleum Research and Studies 10, no. 4 (December 21, 2020): 181–98. http://dx.doi.org/10.52716/jprs.v10i4.377.

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Recently, the emission of black smoke over local area of Basra Oil Company from flare system represents a big problem facing the company and causing huge pollution in the surrounding environment. The main reason of emission black smoke is carryover of droplets of the rest hydrocarbons such as condensate and droplets of crude oil by gases which are came from degassing stations facility in the north Rumelia field, southern Iraq. In this study, a design methodology was developed for designing the knockout drum, and different design criteria were used in sizing and selecting the drum based on the specification of the inlet fluid mixture. Three designs of knockout drums with respect to the gas conditions were performed. The horizontal knockout drum with a diameter of 2.5 m and length of 5.5 m was simulated using a Computational Fluid Dynamics (CFD) model (ANSYS FLUENT 15.0). The CFD model predicted very well the two-phase flow behavior and proved the need for a vortex breaker at the liquid outlet. The CFD simulation revealed quantitatively that the design configuration of the knockout drum performed the separation of condensate droplets from natural gas with excellent efficiency.

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Lisy, Martin, Michal Spilacek, Marek Balas, and Zdenek Skala. "EVALUATION OF COMBUSTION CHAMBER DESIGN USING CFD." MM Science Journal 2019, no. 2 (June 4, 2019): 2877–82. http://dx.doi.org/10.17973/mmsj.2019_06_201808.

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Campen, J. B. "GREENHOUSE DESIGN APPLYING CFD FOR INDONESIAN CONDITIONS." Acta Horticulturae, no. 691 (October 2005): 419–24. http://dx.doi.org/10.17660/actahortic.2005.691.50.

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Yuan, Weixing, Alanna Wall, Eric Thornhill, Chris Sideroff, Mahmoud Mamou, and Richard Lee. "CFD Aided Ship Design and Helicopter Operation." Journal of Marine Science and Engineering 10, no. 9 (September 15, 2022): 1304. http://dx.doi.org/10.3390/jmse10091304.

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In support of Canadian industrial and defence ship design and offshore helicopter operations, a series of Ship–Helicopter Operational Limits Analysis and Simulation (SHOLAS) projects are being conducted at the National Research Council Canada (NRC) in collaboration with Defence Research and Development Canada (DRDC). This study presents a brief overview of a Canadian in-house ship airwake simulation capability combining in-house high-fidelity wind-tunnel tests, full-scale sea trials, high-order computational fluid dynamics (CFD) tools, and realistic engineering-oriented flight simulators. This paper reports challenges and lessons learned during the course of the study, discusses the current capabilities and limitations of the CFD tools and the infrastructure required, and evaluates the gaps and barriers in industry adoption by focusing on how they could be overcome based on our current practice. After validating the CFD results of an updated version of a simplified frigate shape (SFS2) and the real-world Canadian Patrol Frigate (CPF), which are in reasonable agreement with the available in-house wind-tunnel and sea-trial data, the developed approach was recently applied to the design of an undisclosed Canadian ship. Among other applications, CFD airwake results were used with confidence as input to produce representative airwake features in industrial high-fidelity piloted flight simulators.

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Khan, Mohammed Shais. "Design and CFD Analysis of Surgical Instrument." International Journal for Research in Applied Science and Engineering Technology 7, no. 9 (September 30, 2019): 988–93. http://dx.doi.org/10.22214/ijraset.2019.9138.

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M, Kishore. "Design and CFD Analysis of Supersonic Nozzle." International Journal for Research in Applied Science and Engineering Technology 8, no. 7 (July 31, 2020): 1539–47. http://dx.doi.org/10.22214/ijraset.2020.30550.

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Wu, Jingchun, Katsumasa Shimmei, Kiyohito Tani, Kazuo Niikura, and Joushirou Sato. "CFD-Based Design Optimization for Hydro Turbines." Journal of Fluids Engineering 129, no. 2 (July 6, 2006): 159–68. http://dx.doi.org/10.1115/1.2409363.

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A computational fluid dynamics-based design system with the integration of three blade design approaches, automatic mesh generator and CFD codes enables a quick and efficient design optimization of turbine components. It is applied to a Francis turbine rehabilitation project with strict customer requirements to provide over 3% increase in peak efficiency, 13% upgrade in power, and improved cavitation characteristics. Extensive turbulent flow simulations are performed for both the existing and new turbines at design and off design conditions. In order to take into account the interactions between different components, particularly the effects between the rotating and stationary parts, coupling calculations based on the implicit coupling method under multiple frames of reference are carried out for the entire turbine model. As a result, the runner and guide vanes are optimized to the greatest extent, and the stay vanes are locally modified with a possible minimum cost under the geometrical constraints of the existing machine. The performance of the new design is verified by model tests, and exceeds required improvements.

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Olson, T. J., and R. Van Ommen. "Optimizing hydrocyclone design using advanced CFD model." Minerals Engineering 17, no. 5 (May 2004): 713–20. http://dx.doi.org/10.1016/j.mineng.2003.12.008.

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Appa, K., J. Argyris, G. P. Guruswamy, and C. A. Martin. "Synergistic aircraft design using CFD air loads." Computer Methods in Applied Mechanics and Engineering 166, no. 3-4 (November 1998): 247–59. http://dx.doi.org/10.1016/s0045-7825(98)00073-5.

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McNabb, J., C. Devals, S. A. Kyriacou, N. Murry, and B. F. Mullins. "CFD based draft tube hydraulic design optimization." IOP Conference Series: Earth and Environmental Science 22, no. 1 (March 1, 2014): 012023. http://dx.doi.org/10.1088/1755-1315/22/1/012023.

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Burgreen, G. W., and M. V. Kameneva. "HEMOLYSIS MINIMIZATION USING CFD-BASED DESIGN TECHNOLOGY." ASAIO Journal 50, no. 2 (March 2004): 171. http://dx.doi.org/10.1097/00002480-200403000-00241.

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Mijorski, S. G., D. G. Markov, G. T. Pichurov, P. Stankov, N. G. Ivanov, and I. S. Simova. "CFD based design of a ventilated space." IOP Conference Series: Materials Science and Engineering 618 (October 29, 2019): 012049. http://dx.doi.org/10.1088/1757-899x/618/1/012049.

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Schilling, Rudolf. "CFD Aided Design von Beschaufelungen hydraulischer Maschinen." Forschung im Ingenieurwesen 60, no. 11-12 (November 1994): 302–6. http://dx.doi.org/10.1007/bf02601400.

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Greene, Dennis J., Bakhtier Farouk, and Charles N. Haas. "CFD Design Approach for Chlorine Disinfection Processes." Journal - American Water Works Association 96, no. 8 (August 2004): 138–50. http://dx.doi.org/10.1002/j.1551-8833.2004.tb10685.x.

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Raut, Prathamesh, Rohit Rathod, Rohit Tidke, Niraj Rathod, Sanchitee Rokade, and Prof Nishant Kulkarni. "Design and CFD Analysis of Centrifugal Pump." International Journal for Research in Applied Science and Engineering Technology 10, no. 12 (December 31, 2022): 638–46. http://dx.doi.org/10.22214/ijraset.2022.47958.

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Abstract: The purpose of this report is to identify /observe and determine the pattern of velocity profile and pressure distribution by using CFD simulation program after the 3D design and modeling of the pump is made using Vista CPD. We have also created a Solid model using Fusion 360 to get a clear idea of Centrifugal pump design. Basically, this report revolves around the idea of investigating the effect and distribution of velocity profile and pressure within a pump having the following specification, Head = 20 m, Flow rate = 100 m3 /hr, and RPM = 2000. 3D Navier–Stokes equations were solved using ANSYS CFX. The standard k −εturbulence model was chosen for the turbulence model. From the design point of view, we have studied the effects of different parameters like rotational speed, volume flow rate etc on the impeller and volute. From the simulation results it was observed that the pressure increases gradually from impeller inlet to outlet. The static pressure on the pressure side is evidently larger than that on the suction side at the same impeller radius. In addition to this, it was observed that the velocity increases from the impeller inlet until it enters the volute casing. It then drops to a minimum value at the outlet region.

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Akshay Shirsikar, Punam Khatik, Kuldeep Singh, and Lachhi Ram. "Optimized Wiper Design using Computational Fluid Dynamics." ARAI Journal of Mobility Technology 2, no. 4 (November 19, 2022): 401–10. http://dx.doi.org/10.37285/ajmt.2.4.8.

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This paper presents the robust use of Computational Fluid Dynamics (CFD) techniques as complement to wind tunnel testing for the performance assessment of rain water and wiper wash behavior on windscreen surfaces. The objective of this paper is to predict windscreen wiper design performance and its effectiveness with the help of CFD. Clear visibility to the occupants is the key for stress free and safer driving experience, therefore it is important to study the windscreen wiper system performance under different work load conditions. A multi-phase CFD code is used to simulate rain drops and its impingent on the vehicle is modeled with the help of thin liquid film. The wiper blade motion is defined with inputs from multi body dynamics (MBD) considering the driver and passenger side wiper blade speed and extent. Time-dependent results for the wiper blade location, water fluid film spread, and its height on the windscreen, A-pillar, leaf-screen rain gutters were obtained. The CFD results then equated with the physical test data. The calculated water film pattern found to be associated with the observed patterns of the waterways on the test vehicle. Multiple design studies were performed on the CFD model which are also reliable with similar test configurations. From the results, it is concluded that numerical simulation of water behavior on vehicle surfaces is possible, and CFD method is effective tool to assist engineers in envisaging, analyzing, and designing water management systems. A Computational Fluid Dynamics code had been introduced in order to simulate the cleaning performance of the automobile wash. Multi-phase thin film with rigid body motion models were used for this purpose. The objectives of the project were to quantify the water flow, enhance visualization, and develop a CAE methodology which will assist in the product development process.

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