学术
摘 要:
在Rhie-Chou动量插值的基础上,推导了同位网格可压缩SIMPLE算法.经过无粘流超音速凸包算例和激波/湍流边界层干扰算例计算发现,如果对流项采用高阶有界HLPA格式,密度插值采用一阶迎风和中心差分的混合格式,这种算法能够很好地模拟凸包超音流的流动现象,在采用了新型GAO-YONG湍流模型后也能够较好地模拟激波/湍流边界层干扰.[著者文摘]
文章出处:
《航空动力学报》-2007年22卷10期 -1673-1677页
栏目信息:
文献标识码:
A
文章编号:
1000-8055（2007）10-1673-05
Study of SIMPLE algorithm for compressible flows on non-staggered grids
FU Xiao-yan,GAO Ge（School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100083,China）
Abstract:
Based on Rhie-Chou momentum interpolation,a SIMPLE algorithm for compressible flows of non-staggered grids was deduced.With this method,the inviscid flow in a channel with a bump and shock/boundary-layer interactions were computed.If HLAP scheme is adopted for convection term,the hybrid scheme is applied to density interpolation.This method can simulate efficiently both compression waves and expansion waves in supersonic flows.With the help of GAO-YONG turbulence models,it＇s possible to simulate satisfactorily the shock/turbulent boundary-layer interaction in a channel.[著者文摘]
Key words:
aerospace propulsion system;SIMPLE algorithm;non-staggered grids;GAO-YONG turbulence model;shock/turbulent boundary-layer interaction
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