二维非定常化学非平衡流动高精度数值模拟及其与实验的比较  

HIGH RESOLUTION CALCULATION OF UNSTEADY,TWO-DIMENSIONAL NONEQUILIBRIUM GAS DYNAMICS WITH EXPERIMENTAL COMPARISONS

作　　者：胡光初[1] 乐嘉陵[1] 曹文祥[1] 

机构地区：[1]中国空气动力研究与发展中心

出　　处：《气动实验与测量控制》1993年第3期94-100,共7页

摘　　要：本文成功地将二阶迎风 TVD 数值格式运用到弱电离、化学非平衡斜激波反射流场的数值计算中。气体力学方程与组元质量守恒方程组全耦合求解是目前非平衡流场数值计算中的新方向,文中详细给出了气体力学方程和组元质量守恒方程组全耦合求解过程,最后给出了三种不同情况斜激波反射流场数值结果并进行了详细讨论,本文所得结果与文献〔4〕提供的实验结果和文献〔1〕提供的数值结果相符合。In this paper a several oblique shock reflection in weaklyionizing,chemically relaxing gas flow have been successfully simulatedusing a second-order upwind TVD scheme.It is a new subject recentlydeveloped in nonequilibrium gas flow calculations that gas-dynamics andspecies-continuity equations are sovled by fully coupling manner.Gas-dy-namics and species,continuity equations fully coupling procedure isdescribed in detail.Numerical solutions are presented with detaileddiscussion for three oblique shock wave reflection in weakly ionizing,chemically relaxing gas flows.The numerical results obtained here agreewell with the experiments in Refs.[4]bY I.I.Glass and calculationresults in Refs.[1]by H.M.Glaz.

关 键 词：非平衡流 斜激波反射 迎风TVD格式 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]