Search results

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.

In this study, the fire is modeled using Computational Fluid Dynamics (CFD) software FDS (Fire Dynamic Simulator).
FDS Modelling The fire shown in Figure 3 above is incorporated into the CFD model.
Fig. 4: Smoke layer history at the lounge, corridor and bedroom 2 Fig. 5: FED at the corridor and bedroom 2 Conclusion Terwindle Rest Home fire has been modelled using CFD simulation.
The CFD simulation showed that Fraction Effective Doses reached the value of unity at 950 second (16 minutes from fire growth).
The simulation shows that CFD software can be utilised in fire investigation provided that the correct design fire is used.

In order to solve the problem, some scholars use coupling method of mesoscale meteorological model and the small and medium scale atmospheric diffusion model or computational fluid dynamics (CFD) model to carry out regional or small scale wind field simulation, that is, to achieve refinement numerical simulation by using the method of dynamical downscaling.
For instance, National Climate Center [18] carried out a more detailed calculation on wind speed of concerned region by using hourly wind speed simulation results of MM5 as initial field of CFD software, indicating that simulation results of MM5 and CFD method, faster and more economic, are more consistent with observation results, and can be used as one of the wind field simulation methods under complex terrain conditions, which has certain application value.
Besides, Fang [19] also uses WRF mesoscale numerical models coupled with CFD software to carry out researches on the applicability of combined numerical simulation study of mesoscale and small scale mode on wind energy resources of complex topography, indicating that it is feasible to use WRF and CFD method on numerical simulation of complex topography and wind resources assessment, and is more advantageous to make refined regional wind energy resource distribution map.
The simulation results are more accurate than with CFD software only.
Study on numerical simulation of wind energy resources based on WRF and CFD models (in Chinese).

Keywords: temperature, cavitation, sliding bearing, CFD Abstract.
The film temperature of sliding bearing considering the cavitation is studied based on the Rayleigh-Plesset (PRE) model with the computational fluid dynamics (CFD) method.
Nevertheless, so far it has been not found that the bearing temperature including cavitation effects is studied using CFD method.
In the simulation, the bearing is meshed with a hexahedron element with eight nodes.
In the simulation, the bearing’s radius, clearance and length are 15, 0.03 and 24 mm, respectively.

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.

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.

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

Turbulence Kinetic Energy Performance on Wind Turbine Blade Using CFD Norzelawati Asmuin1,a, M.R.
This paper discuss the result obtain from simulation in CFD using CFX on NACA 4412 and NACA 4415.
The geometry was design in Solid work and imports to CFX for simulation process using RNG k-e turbulence model.
Conclusion The simulation on wind turbine blade has been done using CFD.
The drag coefficient , lift coefficient and turbulence kinetic energy are determine by implementing CFD software using CFX.

Ltd, Hang zhou, China azhangqunfeng@263.net Keywords: Hydro-generator, Ventilation system, Numerical simulation, Pressure loss Abstract.
The simulation results provide a scientific basis for optimization of ventilation system.
Simulation Method Governing Equations.
The grids of different parts were generated with ICEM-CFD.
Turbulence Modeling for CFD.

Study on Influence Law of Urban Architectural Structure on the Automobile Exhaust Diffusion Based on CFD Yong Zhang1,2,a, Zhengqi Gu 1,2,b, Zhen Wang 1,c and Yong Yu 1,d 1.
(4) Considering the flow within the simulation area as incompressible fluid.
Then the fluent module of Ansys12.0 software is selected to execute the three-dimensional CFD simulation.
Summarized as follows: (1) The numerical simulation method of exhaust diffusion for 3D urban can be used to urban crossroads automobile exhaust diffusion simulation, prediction and assessment.
In Chinese [4].Zhang qiang.CFD Numerical Simulation on vehicle exhaust gas.