MESHLESS LOCAL PETROV-GALERKIN METHOD FOR CONVECTION-DOMINATED FLOW PROBLEMS
In this paper, the meshless local Petrov-Galerkin (MLPG) method is applied to compute convection-dominated flow problems in 2-D space. Two cases of rotating flow field and Smith-Hutton problem are selected as the demonstrated test problems. The results of the MLPG method are compared with the results of the finite volume method using the first order upwind (FUD) scheme and the QUICK scheme. The results show that the FUD scheme exhbits the false diffusion at a larger Peclet number; the QUICK scheme and the MLPG method can obtain very closed solutions; but they have small overshoots produced at larger-Peclet number. The results also indicate that the MLPG method is a highly effective and accurate numerical method to deal with convection dominated flow problems and can eliminate the effect of the false diffusion. Its shortcoming is more cost-expensive in CPU time.
X.H.WU S.P. SHEN Z.Y.LI W.Q.TAO
State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering MOE Key Laboratory for Strength and Vibration, School of aerospace, Xi’an Jiaotong University, Xi’an
国际会议
首届亚洲计算传热与计算流体国际会议(2007 Asian Symposium on Computational Heat Transfer and Fluid Flow)
西安
英文
2007-10-08（万方平台首次上网日期，不代表论文的发表时间）