文档介绍：第 33 卷第 1 期空气动力学学报 , 2015 年 02 月 ACTA AERODYNAMICA SINICA Feb.,2015文章编号:0258-1825(2015)01-0036-06辐射加热对返回舱气动热环境影响的数值研究高铁锁,江涛,丁明松,董维中,桂业伟(中国空气动力研究与发展中心,四川绵阳 621000)摘要:基于高超声速再入飞行器气动热环境预测分析的需要,建立了高温非平衡气体辐射加热对飞行器热环境影响的计算分析手段。采用数值求解化学非平衡 N-S 方程的方法,对返回舱绕流流场进行模拟,获得高温空气组分质量分数和温度等流场参数分布。基于辐射传输方程,考虑高温气体组分的主要辐射机制,计算分析高温流场气体辐射加热对返回舱热环境的影响。分析表明,在同一飞行弹道条件下,返回舱大底半径尺寸对气动加热的影响较大,在再入热环境严酷区,辐射加热对物面总热流的贡献达 30 %;产生辐射加热效应的主要机制是高温流场中O 和 N 原子产生连续谱和线状谱以及 N2 的第一正带系;物面催化效应对辐射加热影响不大。关键词:返回舱;高温气体;辐射加热;对流传热;化学组分;数值方法中图分类号: 文献标识码:A doi:- study of radiative heating influence on aerothermalenvironment over a reentry capsuleGao Tiesuo,Jiang Tao,Ding Mingsong,Dong Weizhong,Gui Yewei(China Aerodynamics Research and Development Center ,Mianyang 621000,China)Abstract:putational means are developed to predict the radiative heating influence ofhigh-temperature nonequilibrium gas on the aerothermal enviroment in order to meet the require-ment of aerothermal enviroment understanding over hypersonic reentry high-tem-perature air flowfeild over a reenrty capsule after the lunar-earth transfer orbital flight are simula-ted by solving Navier-Stokes equations with chemical source terms,the parameters,such as tem-perature and mass fraction of species in the flowfilds,are on radiation transferequation,considering the major radiative mechanisms of atom