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Online since: September 2014
Authors: Jin Ke Gong, Xiang Ling Liu, Liao Ping Hu, Jia Qiang E
The CFD Analysis of Internal Flow Field in Turbocharger Compressor
Xiangling Liu1,2,a, Liaoping Hu2, Jinke Gong2, Jiaqiang E2
1College of Mechanical Engineering, Hunan International Economics University, 410205, China
2The State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,
Hunan University, 410082, China
axiangling_liu@163.com
Keywords: Turbocharger, Compressor, NUMECA, Numerical simulation, CFD
Abstract.
The approach of numerical simulation and flow field analysis by using CFD method can accurately predict the compressor performance.
Numerical Simulations of Stall inside a Centrifugal Compressor [J].
Simulation of Three-dimensional Compressible Turbulent Flow in Scroll of a Turbocharger [J].
Numerical simulation of the flow field in diesel engine exhaust manifold based on FLUENT [J].
The approach of numerical simulation and flow field analysis by using CFD method can accurately predict the compressor performance.
Numerical Simulations of Stall inside a Centrifugal Compressor [J].
Simulation of Three-dimensional Compressible Turbulent Flow in Scroll of a Turbocharger [J].
Numerical simulation of the flow field in diesel engine exhaust manifold based on FLUENT [J].
Online since: June 2014
Authors: Fatemeh Behrouzi, Yasser Mohamed Ahmed, Adi Maimun Abdul Malik, Mehdi Nakisa
Among the different renewable energy technologies, hydro power generation (large and small scale) is the prime choice in terms of contribution to the world's electricity generation by using water current turbines.CFD simulation using two equations turbulence model was carried out to compare performance of conventional savonius turnine and new consept of vertical axis turbine.
This study presented new idea to increase performance of savonius turbine and CFD simulation was done to proof this significant.
Albeit it is considerable that accuracy of 2D simulation is less than 3D, so some differences in Fig.2 are due to 2D simulations and the differences could be attributed to mesh sizes.
CFD Simulation Configuration In order to increase performance of VACT turbine new idea presented in this part.it was a combination of Darrieus and Savonius concept.
A.Ismail, Validation Study for Savonius Vertical Axis Marine Current Turbine Using CFD Simulation, The 6th Asia-Pacific Workshop on Marine Hydrodynamics-APHydro(2012)
This study presented new idea to increase performance of savonius turbine and CFD simulation was done to proof this significant.
Albeit it is considerable that accuracy of 2D simulation is less than 3D, so some differences in Fig.2 are due to 2D simulations and the differences could be attributed to mesh sizes.
CFD Simulation Configuration In order to increase performance of VACT turbine new idea presented in this part.it was a combination of Darrieus and Savonius concept.
A.Ismail, Validation Study for Savonius Vertical Axis Marine Current Turbine Using CFD Simulation, The 6th Asia-Pacific Workshop on Marine Hydrodynamics-APHydro(2012)
Online since: November 2012
Authors: Jia Lin Tian, Lei Chen
Used the FLUENT, a CFD software, a series of simulation experiments were done.
Since the numerical simulation which based on CFD don’t need practical prototype, cut down model, besides, it doesn’t have distribution and is security.
There are two key problems remain to be solved in the grid division in CFD simulate compute.
CFD Analysis of Escape Systems in High-speed Flow Field Based on the Chimera Technique[D].
Validation of CFD Methodology for Ejection Seat Applications[R].
Since the numerical simulation which based on CFD don’t need practical prototype, cut down model, besides, it doesn’t have distribution and is security.
There are two key problems remain to be solved in the grid division in CFD simulate compute.
CFD Analysis of Escape Systems in High-speed Flow Field Based on the Chimera Technique[D].
Validation of CFD Methodology for Ejection Seat Applications[R].
Online since: October 2010
Authors: Luiz Gustavo Martins Vieira, João Jorge Ribeiro Damasceno, Natalia M.B. Oliveira
In this panorama, the current academic-industrial trend is determining numerical (simulation) of constant “C” through a methodology which is based on Computational Fluid Dynamics (CFD) techniques, in order to remedy the experimental dependence on the calibration or operation of these flow meters.
In this article, numerical simulations are performed through the commercial code Fluent.
The experimental data and fluid dynamics simulation are shown in Fig. 2.
Characteristic Curve of Orifice Meter (CFD) and experimental data from [4].
Another important tool provided by CFD techniques consists of certain variable calculation along a given boundary.
In this article, numerical simulations are performed through the commercial code Fluent.
The experimental data and fluid dynamics simulation are shown in Fig. 2.
Characteristic Curve of Orifice Meter (CFD) and experimental data from [4].
Another important tool provided by CFD techniques consists of certain variable calculation along a given boundary.
Online since: January 2013
Authors: Chih Chun Su, Hsu Jeng Liu, Sheng Liang Huang
Lawrence [4] simulated the flow field in the engine compartment of a sedan with CFD.
The simulation results were almost agreement with the experiments of prototype vehicles; it showed that CFD benefited the optimal design and achieving a better management of airflow and temperature in the beginning of development.
Results and Discussion First of all, the simulation of the flow field in the engine compartment of the prototype model was performed.
Then, 4 improved models illustrated in Table 1 were presented based on the simulation results of the prototype model.
From the CFD simulation results, the following conclusions are acquired. 1.
The simulation results were almost agreement with the experiments of prototype vehicles; it showed that CFD benefited the optimal design and achieving a better management of airflow and temperature in the beginning of development.
Results and Discussion First of all, the simulation of the flow field in the engine compartment of the prototype model was performed.
Then, 4 improved models illustrated in Table 1 were presented based on the simulation results of the prototype model.
From the CFD simulation results, the following conclusions are acquired. 1.
Online since: May 2011
Authors: Yi Gang Luan, Hai Ou Sun
Effect of Blade Numbers on Pressure Drop of Axial Cyclone Separators by CFD
LUAN Yigang1,a, SUN Haiou1,b
1 College of Power and Energy Engineering of Harbin Engineering University Heilongjiang Province China,
1,ashandong-313@163.com, 1,bsunhaiou@hrbeu.edu.cn
Keywords: CFD; Blade Numbers; Cyclone Separators; Pressure Drop
Abstract.
In this article, computational fluid dynamics(CFD) method is used to predict the effect of blade numbers on the pressure drop of axial cyclone separators.
On one hand, non-uniform grid partition guarantees the accuracy of simulation, on the other hand, controls the amount of calculation.
Numerical simulation results and analysis In order to well understanding the flow field inside axial cyclone separators, Fig.3 to Fig 5 are the distribution of several characteristic parameters inside cyclone separators.
Conclusions CFD method is used to predict the influence of blade numbers on pressure drop of axial cyclone separators.
In this article, computational fluid dynamics(CFD) method is used to predict the effect of blade numbers on the pressure drop of axial cyclone separators.
On one hand, non-uniform grid partition guarantees the accuracy of simulation, on the other hand, controls the amount of calculation.
Numerical simulation results and analysis In order to well understanding the flow field inside axial cyclone separators, Fig.3 to Fig 5 are the distribution of several characteristic parameters inside cyclone separators.
Conclusions CFD method is used to predict the influence of blade numbers on pressure drop of axial cyclone separators.
Online since: June 2020
Authors: Shafiq Suhaimi, Hamid Yusoff, Solehuddin Shuib, A. Halim Kadarman
This is done using Computational Fluid Dynamics (CFD) simulation where the aerodynamic performance a wing derived from a natural bat wing shape was studied.
The objective of this study is to study the aerodynamic performance of a flapping wing derived from a bat wing using a Computational Fluid Dynamics (CFD) simulation.
Fig. 3, Modules linkages schematics for the FSI simulation Mesh Generation Since the simulation was done in an FSI simulation that uses FEA and CFD solver, this means that all bodies that is involved needed to be meshed.
Fig. 4, Generated mesh of the wing For the CFD simulation, 2 flow fields were generated for the simulation, as seen in Fig. 5.
Fig. 5, Flow field used in the simulation Fig. 6, Generated mesh of the simulated flow field Computational Fluid Dynamics (CFD) The CFD simulation that is involved in this study was done using the Fluent module in the ANSYS software.
The objective of this study is to study the aerodynamic performance of a flapping wing derived from a bat wing using a Computational Fluid Dynamics (CFD) simulation.
Fig. 3, Modules linkages schematics for the FSI simulation Mesh Generation Since the simulation was done in an FSI simulation that uses FEA and CFD solver, this means that all bodies that is involved needed to be meshed.
Fig. 4, Generated mesh of the wing For the CFD simulation, 2 flow fields were generated for the simulation, as seen in Fig. 5.
Fig. 5, Flow field used in the simulation Fig. 6, Generated mesh of the simulated flow field Computational Fluid Dynamics (CFD) The CFD simulation that is involved in this study was done using the Fluent module in the ANSYS software.
Online since: May 2013
Authors: P.L. Mtui
Box 35131
Dar es Salaam, Tanzania
Email: plmtui@yahoo.com
Keywords: CFD, numerical simulation, thermal oxidation, chemical species, waste incineration
Abstract.
The CFD analysis provides three-dimensional view of thermal and gas flow field inside the thermal oxidizer chamber.
The performance of this method is demonstrated and discussed based on the results of the test simulations.
Field tests (not reported here) indicate excess CO emissions therefore prompted to undertake CFD simulation to troubleshoot oxidizer the observed problem.
The CFD results provided guidelines to redesign the old oxidizer resulting into better performance.
The CFD analysis provides three-dimensional view of thermal and gas flow field inside the thermal oxidizer chamber.
The performance of this method is demonstrated and discussed based on the results of the test simulations.
Field tests (not reported here) indicate excess CO emissions therefore prompted to undertake CFD simulation to troubleshoot oxidizer the observed problem.
The CFD results provided guidelines to redesign the old oxidizer resulting into better performance.
Online since: May 2014
Authors: Ying Ming Su, Yu Chou Wu
In this study, we made site surveys for the dimension and the computational fluid dynamics (CFD)-based simulations to predict the wind field of Eryi Lou.
In the CFD analysis, we considered the incompressible isothermal turbulent airflow to examine the interaction of the natural ventilation effected by its unique shape.
The inlet boundary condition in CFD computations of the atmospheric boundary layer (ABL) flow was used to model the associated atmospheric processes.
Numerical computations by the CFD software ACE+® were performed to explore the wind field structure characterized by the interaction of wind flow with earthen building.
This research intends to integrate the detailed analysis via the CFD-based simulations with the designers from realistic physical sense for design an optimal architecture.
In the CFD analysis, we considered the incompressible isothermal turbulent airflow to examine the interaction of the natural ventilation effected by its unique shape.
The inlet boundary condition in CFD computations of the atmospheric boundary layer (ABL) flow was used to model the associated atmospheric processes.
Numerical computations by the CFD software ACE+® were performed to explore the wind field structure characterized by the interaction of wind flow with earthen building.
This research intends to integrate the detailed analysis via the CFD-based simulations with the designers from realistic physical sense for design an optimal architecture.
Online since: July 2014
Authors: Hua Rong Xin, Ming Yue Zhang
Three-dimensional CFD Simulation for Water-lubricated Guide Bearing of Large Tubular Pump
Hua-rong XIN 1,a, Ming-yue ZHANG 2,b*
1Hydraulic project management office, Jiangsu Jiangdu, Jiangdu225200,China
2College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing210009, China
ae-mail:xxinhuarong@163.com, be-mail:392066578@qq.com
Key words: water-lubrication; guide bearing; pressure field; CFD-computation fluid dynamics
Abstract.
With the development of CFD, 3D CFD technique based on finite volume method is gradually applied to parameter optimization of sliding bearing [6-8].
Numerical Simulation and Analysis Document [11] shows the opinion that when the Re of sliding bearing internal flow field goes up to 1000, the flow will be turbulence.
Application of CFD analysis for rotating machinery-Part I: hydrodynamic, hydrostatic bearings and squeeze film damper[J].
Design of water-lubricated bearing of stern based on CFD[J].Lubrication and Seal,2008,33(5) : 72-76
With the development of CFD, 3D CFD technique based on finite volume method is gradually applied to parameter optimization of sliding bearing [6-8].
Numerical Simulation and Analysis Document [11] shows the opinion that when the Re of sliding bearing internal flow field goes up to 1000, the flow will be turbulence.
Application of CFD analysis for rotating machinery-Part I: hydrodynamic, hydrostatic bearings and squeeze film damper[J].
Design of water-lubricated bearing of stern based on CFD[J].Lubrication and Seal,2008,33(5) : 72-76