高超声速三维化学非平衡流动的数值模拟  

Numerical simulations of hypersonic three-dimensional chemical non-equilibrium flows

作　　者：马辉[1] 赵烈[1] 王发民[1] 

机构地区：[1]中国科学院力学研究所,北京100080

出　　处：《北京航空航天大学学报》2004年第2期168-172,共5页Journal of Beijing University of Aeronautics and Astronautics

摘　　要：高温非平衡化学反应对高超声速再入飞行器绕流流场的气动热特性有较大影响 .通过采用有限体积NND(Non oscillatory ,containingNofreeparametersandDissipativescheme)格式求解三维N S方程 ,分别计算了小攻角条件下球锥的完全气体粘性流场和化学反应非平衡气体流场 .比较并分析了化学非平衡作用对三维高超声速钝头体绕流流场的影响 .所得结果与国外文献结果符合的较好 ,证明了计算方法与程序的有效性和实用性 .High temperature chemical non-equilibrium phenomena have a great effect on the flow field around a reentry vehicle. Three-dimensional Navier-Stokes equations were solved by implicit finite volume NND scheme. Both ideal gas viscous flow and chemical non-equilibrium flow were calculated for a spherical cone at a small attack angle. The results of the two flows were compared and the effect of chemical non-equilibrium was analyzed.

关 键 词：化学非平衡 三维计算 高超音速再入 TVD格式 热流 

分 类 号：V211.24[航空宇航科学与技术—航空宇航推进理论与工程]