空气动力学学报Issue(6)：767-771,5.DOI:10.7638/kqdlxxb-2014.0083
高超声速激波／边界层干扰流动数值模拟研究
Numerical study on hypersonic double-cone separated flow
摘要
Abstract
A portion entropy fix method was developed in a computational fluid dynamic(CFD)code based on Navier-Stokes techniques with Roe′s scheme.The portion entropy fix method overcomes the short-age of large dissipation in boundary layer simulations that traditional entropy fix method generally may pos-sess and achieves more accurate simulation results of complex hypersonic viscous flows with shock wave/boundary layer interaction.In this paper,the typical hypersonic double-cone separated flows with shock wave interactions are computed by the code.The grid sensitivity and the entropy fix method dissipation effects are studied.From the analysis,the simulation results of hypersonic separated flows with shock wave interactions are very sensitive with grid refinement,and coarse grid will give large departure;portion entropy fix methods with low dissipation obtaines more credible solution for complex hypersonic separated flows with strong shock wave interactions.关键词
计算流体力学/高超声速/激波/边界层干扰/熵修正/网格敏感性Key words
computational fluid dynamic/hypersonic/shock wave/boundary layer interaction/entropy fix/grid sensitivity分类
航空航天引用本文复制引用
龚安龙,刘周,杨云军,周伟江..高超声速激波／边界层干扰流动数值模拟研究[J].空气动力学学报,2014,(6):767-771,5.基金项目
国家自然科学基金 （）
