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In the recent years, commercial computational fluid dynamics (CFD) software has become an important approach in the EGR cooler studies [3].
Basic background The CFD method was derived based on the fluid governing equations.
Simulation and verification Assumed Conditions.
Simulation.
The errors of the simulation results are less than 5%, which satisfy the requirement accuracy of numerical simulation.

In this paper, a 2-D numerical simulation of the wind turbine S825 airfoil is conducted with Spalart-Allmaras (SA) turbulence model at different attack angles.
As the spirit of RANS, turbulence model is one of the key elements and a weakness in CFD for engineering [3,4].
The Spalart-Allmaras (SA) turbulence model is widely used in engineering CFD due to its simplicity, robustness and efficiency [5].
When the attack angle is greater than 13 deg, the deviation between the numerical simulation and experiment is obvious because of the separation flow.
Conclusion Numerical simulation for wind turbine airfoil S825 is performed by CFD software Fluent 6.3.26.

In the study of engine-thermoelectric source, domestic and foreign scholars are using numerical methods[3]-[5] and CFD soft to simulate cars’ thermal system[6]-[9]. [10] and [11] established the models and made numerical simulations for a built-in thermoelectric generation system.
We Build and mesh the model of thermoelectric generator with the use of pre/E and ICEM CFD soft respectively.
STAR-CD Simulation.
System simulation requires different software.
Investigation of a Coupled CFD and Thermal Modeling Methodology for Prediction of Vehicle Underbody Temperatures.

Numerical Simulation of Random Wind-excited Response Analysis of Henan TV Tower Yong ZENG1,2,a, Hongmei Tan1,2,b 1.
The shape coefficient of the TV Tower’s each segment is obtained based on CFD.
CFD simulation to obtain the shape factor is obtained by CFD simulation and wind load time history of the tower is generated by harmonic synthesis.
Walther (1997), “Aeroelastic analysis of girder sections based on discrete vortex simulations” [J].Wind Eng.
Numerical Simulation of the Drag Coefficient and Analysis of Dynamic Response for Flow Around Henan TV and Broadcast Tower(I)[J].

Numerical Simulation of Traffic Emissions in Urban Street Canyon Peng Wanga, Daiqing Zhao, Guotian Cai, Cuiping Liao Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, China aemail: energyx@qq.com; wangpeng@ms.giec.cas.cn Keywords: Numerical Simulation; Street Canyon; FLUENT; Leeward and Windward; Clockwise Vortex; Turbulent Model.
The simulation results were compared with the available wind tunnel experiments and favorable agreement was found.
The FLUENT CFD package has been configured to solve the Navier-Stokes equations for the mean flow in street canyons for various street intersections using the standard k-ε turbulence model, which was presented by [12].
Flow simulation.
Present simulation study suggests that the three dimensional and transient effects are important in modeling the airflow pollutant transport in street canyons.

The simulation results obtained are in agreement with the experimental results of Liu et al. [18].
Conclusions 2D simulation of fluidised bed reactor is carried out for biomass gasification in fluidised bed reactor.
Results obtained from the simulation are compared with experimental values.
Bridgwater, CFD modelling of the fast pyrolysis of biomass in fluidised bed reactors.
Shah, Modeling and simulation of an entrained flow coal gasifier.

The fabrication of chip and set-up of system are clearly described and simulations also carried out utilizing CFD-ACE to study the electric field strength distribution and the time span when fluid passes through different electric field strengths.
Simulation and Results The Simulations were also carried out on the personal computer using the CFD-ACE to analyze different models.
And simulations were also carried out about this model.
The fabrication of chip and set-up of system were described and simulation of the proposed EP system was also shown in the paper.
Simulations using CFD-ACE were also carried out on different models.

Computer Simulation of Centrifugal Casting Process using FLOW-3D Aneesh Kumar J1, a, K.
Hence, in the present work, the commercial CFD code FLOW-3D™, has been used to simulate the mold filling sequence for a simple hollow cylindrical casting during vertical centrifugal casting process.
Hence in the present work, the commercial CFD code FLOW-3D™, has been used to simulate the mold filling sequence of a simple hollow cylinder casting during vertical centrifugal casting process.
The total number of voxels are 4.4 million with a mesh size of 2 mm which is the optimum mesh size for the current simulation.
Heng-zhi, Numerical simulation and experimental investigation of two filling methods in vertical centrifugal casting, Trans.

Bredell [10] utilized Fluent CFD code to investigate the interaction of fans runnig in a row used in a forced draft air-cooled steam condenser.
Meyer[13] utilized Flo++ code（CFD）and a fan fig to investigate how to simulate the velocity field in the vicinity of fan blades by using the actuator disc and blade element theroy applied to CFD code.
Fan Simulation.
Fan outlet flow field Flow Simulation.
Heat Transfer Simulation.

ayaozq_just@126.com, bonedollar1@sina.com, c249662902@qq.com Keywords: Ducted propeller, PBCF, Hydrodynamic performance, Numerical simulation.
Numerical Simulation Model.
Fig.2 Division of the compulational domain Fig.3 The grids of duck Mesh is the most important process of CFD simulation calculation, its quality directly affects the precision and efficiency of computation.
The analysis of numerical results The validation of numerical simulation.
[3]OU Li-jian, AN Yuan, The Research Based on CFD of Hydrodynamic Performance for Ducted Propeller, Science Technology and Engineering.2010.7