Starting Nozzle Flow Simulation Using K-G Two-Equation Turbulence Model

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	Starting Nozzle Flow Simulation Using K-G Two-Equation Turbulence Model
	Yang GW(杨国伟); Hu ZM(胡宗民); Jiang ZL(姜宗林)
	2004-07-11
会议名称	24th International Symposium on Shock Waves, JUL 11-16, 2004 Beijing, PEOPLES R CHINA
通讯作者	姜宗林
中文摘要	The starting process of two-dimensional nozzle flows has been simulated with Euler, laminar and k - g two-equation turbulence Navier-Stokes equations. The flow solver is based on a combination of LUSGS subiteration implicit method and five spatial discretized schemes, which are Roe, HLLE, MHLLE upwind schemes and AUSM+, AUSMPW schemes. In the paper, special attention is for the flow differences of the nozzle starting process obtained from different governing equations and different schemes. Two nozzle flows, previously investigated experimentally and numerically by other researchers, are chosen as our examples. The calculated results indicate the carbuncle phenomenon and unphysical oscillations appear more or less near a wall or behind strong shock wave except using HLLE scheme, and these unphysical phenomena become more seriously with the increase of Mach number. Comparing the turbulence calculation, inviscid solution cannot simulate the wall flow separation and the laminar solution shows some different flow characteristics in the regions of flow separation and near wall.
收录类别	CPCI-S
会议录	Shock Waves, Vols 1 and 2, Proceedings of the 24th International Symposium on Shock Waves, 2004, Pages: 1175-1180 Published: 2005
学科主题	力学
语种	英语
WOS记录号	WOS:000231243300181
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/13741]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Yang GW,Hu ZM,Jiang ZL. Starting Nozzle Flow Simulation Using K-G Two-Equation Turbulence Model[C]. 见:24th International Symposium on Shock Waves, JUL 11-16, 2004 Beijing, PEOPLES R CHINA.