A Thermochemical Nonequilibrium Flow around a Super Orbital Reentry Capsule with Ablation
A Thermochemical Nonequilibrium Flow around a Super Orbital Reentry Capsule with Ablation
复制标题
超轨道再入舱周围烧蚀的热化学非平衡流
DOI：
10.1063/1.1407630
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
迪雄 西田
中科院分区：
文献类型：
--
作者：
Ryoji Doihara;M. Nishida;良次 土井原;迪雄 西田
采用热化学非平衡全粘性激波层（VSL）方程对MUSES-C超轨道返回舱的气动加热进行了数值研究。一个11 airspecies模型用于非烧蚀边界条件。在烧蚀边界条件中加入了六种碳组分。采用三温模型，考虑了热非平衡效应。计算了在不同高度下，全催化壁（FCW）和非催化壁（NCW）条件下返回舱再入轨迹的对流和辐射热流，计算结果表明，FCW和NCW条件下返回舱再入轨迹的最大热流密度分别为8.7MW/m2和6.1MW/m2。还计算了舱内驻点处的辐射热流，发现在62 km高度处的辐射热流最大，为0.9 MW/m ~ 2。紫外和真空紫外光谱的强度是非常强的，所以这样的紫外和真空紫外光谱主要贡献于辐射热通量。
The aerodynamic heating to the super orbital reentry capsule of MUSES-C is numerically studied by using thermochemical nonequilibrium full Viscous-Shock-Layer (VSL) equations. An 11 airspecies model is used for non-ablating boundary conditions. Six carbonous species are added for ablating boundary conditions. With a three-temperature model, thermal nonequilibrium effect is taken into account. The convective and radiative heat fluxes to the wall are examined for both fully catalytic wall (FCW) condition and non-catalytic wall (NCW) condition at various altitudes for the capsule reentry trajectory path. The maximum heat fluxes estimated for FCW and NCW are 8.7 MW/m2 at the altitude of 56 km and 6.1 MW/m2 at the altitude of 56 km, respectively. The radiative heat flux at the stagnation point of the capsule has also been calculated and the maximum radiative heat flux of 0.9 MW/m2 has been found at the altitude of 62 km. The intensity of UV and VUV spectra are extremely intense, so that such UV and VUV spectra mainly contribute to the radiative heat flux.