Study on Supersonic Base Flow Using RANS/LES Methods

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2009, Vol. 26 ›› Issue (2): 221-230.

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Study on Supersonic Base Flow Using RANS/LES Methods

XIAO Zhixiang, FU Song

School of Aerospace, Tsinghua University, Beijing 100084

Received:2007-04-26 Revised:2008-10-04 Online:2009-03-25 Published:2009-03-25

Abstract

Abstract: RANS/LES hybrid methods are developed on the basis of shear stress transport and weakly nonlinear k-ω models with compressible corrections.Supersonic flowfields behind a cylindrical afterbody are investigated to explore rich flow structures and aerodynamic characteristics.Compressible correction shows good agreement with experiment.Results by hybrid methods present detailed and reasonable flow structures,turbulence information and unsteady characteristics.

Key words: supersonic base flow, compressible correction, weakly nonlinear, RANS/LES hybrid method

CLC Number:

V211.3

XIAO Zhixiang, FU Song. Study on Supersonic Base Flow Using RANS/LES Methods[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2009, 26(2): 221-230.

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Study on Supersonic Base Flow Using RANS/LES Methods

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