Computational equations for radiating and ablating shock layers
Computational equations for radiating and ablating shock layers
复制标题
辐射和烧蚀冲击层的计算方程
DOI：
10.2514/6.1990-356
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
F. Milos
中科院分区：
文献类型：
--
作者：
C. Park;F. Milos
导出了以辐射和烧蚀为主导的钝体上激波层流场的计算方程。所考虑的流场是在进入火星或地球大气层的飞行器周围的流场，在从火星返回的冲刺型载人任务中。为了确定合适的方法，首先使用现有的计算机代码RASLE （Nicolet et al., 1978）进行辐射传输计算，该代码使用平衡假设和辐射传输的粗谱带模型，以及考虑热化学非平衡并逐行计算辐射的代码NONEQ。通过对结果的比较，认为必须采用热化学非平衡模型和逐行光谱模型。
The computational equations governing the shock-layer flowfield over a blunt body dominated by radiation and ablation are derived. The flowfield considered is that expected around the vehicles entering the atmosphere of the planet Mars or the earth on return from Mars on a sprint-type manned mission. To determine the appropriate method of approach, the radiative transfer calculations are made first using the existing computer code RASLE (Nicolet et al., 1978), which uses the assumption of equilibrium and a coarse spectral band model for radiative transfer, and the code NONEQ which accounts for thermochemical nonequilibrium and carries out line-by-line calculation of radiation. By comparing the results, it is concluded that a thermochemical nonequilibrium model and a line-by-line spectral model must be used.