Quadratic and cubic eddy-viscosity models in turbulent supercavitating flow computation

作     者：Ying Chen,~(1,a)) Chuanjing Lu,~(1,2) and Xin Chen~1 1)Department of Engineering Mechanics,School of Naval Architecture,Ocean and Civil Engineering, Shanghai Jiao Tong University,Shanghai 200240,China 2)State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China 

作者机构：Shanghai Jiao Tong Univ Dept Engn Mech Sch Naval Architecture Ocean & Civil Engn Shanghai 200240 Peoples R China Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China 

出 版 物：《Theoretical & Applied Mechanics Letters》 (力学快报（英文版）)

年 卷 期：2011年第1卷第3期

页      面：66-70页

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(10832007) Shanghai Leading Academic Discipline Project(B206) 

主　　题：supercavitating flow numerical simulation non-linear turbulence model 

摘      要：Quadratic and cubic non-linear eddy-viscosity turbulence models(NLEVM) with low Reynolds number(Re) correction were presented to provide better description of anisotropic turbulence stresses in the numerical prediction of supercavitating flows,which are accompanied with large density ratio and large-scaled swirling flow *** applications of the NLEVM were carried out through a self-developed cavitation codes,coupled with a cavitation model based on the transport equation of liquid *** NLEVM were verified capable of capturing more accurate macroscopic shape and hydrodynamic property of supercavity by the benchmark problems of supercavities over simple ***,the cubic NLEVM was further applied to the numerical prediction of supercavitating flow around a complex submerged *** corresponding cavitation behaviors were explored in detail to provide beneficial experience for further research.