超声速燃烧的湍流流场数值模拟  

Numerical simulation on the turbulent flowfield of supersonic combustion

作　　者：许丁[1] 王春[2] 马晖扬[1] 

机构地区：[1]中国科学院研究生院,北京100049 [2]中国科学院力学研究所,北京100080

出　　处：《空气动力学学报》2008年第1期73-78,共6页Acta Aerodynamica Sinica

摘　　要：选择了6个有代表性的湍流模型,对超声速燃烧湍流流场开展了数值模拟。采用的模型包括5个线性涡粘性模型和1个非线性模型,在非线性模型中同时引入了可压缩修正。数值结果表明,本文发展的数值方法可以成功地应用于求解可压缩、含化学反应的多组分N-S方程。同时引入可压缩性修正的二阶涡粘性模型给出的结果较好。The turbulent flow field of supersonic combustion is numerically simulated with application of six typical turbulence models. They include five linear eddy-viscosity models and a nonlinear model, in which the compressibility modification is considered. The numerical results show that the present numerical approach can successfully solve Navier-Stokes equation for the compressible, multi-species fluid with chemical reactions. The performance of the nonlinear model with compressibility modification is better.

关 键 词：超声速燃烧 湍流模型 可压缩性 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]