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The technology of computer modeling and simulation is applied to compute and analyze external flow field of the wheels for a medium-class passenger car. Comparisons are drawn between the different results of flow field around the wheels in case that the flow field is modeled and solved with the two different boundary conditions of wheel: one is the stationary wall and the other is the rotating wall...
On the basis of N-S equations for solving three-dimensional Reynolds problem, k-ε turbulence model and standard wall function for near wall region were adopted. The region was meshed and boundary conditions were given. The software of computational fluid dynamics (CFD) was used to simulate centrifugal fan in the system of lignite quality improved. The parameters of static pressure, moving pressure,...
Numerical simulation of two-dimensional stagnation-point flow is investigated with the computational fluid dynamics (CFD) software of STAR-CD and results are compared with those obtained from the similarity solution. Study shows that velocity profiles are in good agreement between numerical simulation and similarity solution for high aspect ratio in the stagnation-point region. Numerical simulation...
The simulation method of CFD was used to investigate the gas pressure and velocity 3D field of tower continuous vacuum dryer. The standard turbulence model was adopted. Material zone was set as porous medium zone. Darcy law, Ergun equation and porous medium interface jump boundary condition was applied. The result shows that the pressure of vacuum outlet should lower the pressure of material inlet...
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