Numerical Analysis of Relaxation Flows behind Extremely Strong Air Shock Waves
Numerical Analysis of Relaxation Flows behind Extremely Strong Air Shock Waves
复制标题
极强空气冲击波背后弛豫流的数值分析
DOI：
10.11345/nctam.54.249
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
H. Shirai
中科院分区：
文献类型：
--
作者：
M. Funatsu;H. Shirai
基于四温度流动模型提出了强空气冲击波背后的松弛区域的控制方程，并作为二边值问题进行了数值求解。详细考虑了粘度、扩散和热导率的传输特性，因为预计激波锋面后面的流动和热条件会急剧变化。还包括分子振动和旋转能量的变化，以及由于双原子分子的解离和重组反应而产生的自由电子能。计算得出的旋转和振动温度分布与实验非常吻合。
The governing equations for a relaxation region behind strong air shock waves were presented based upon a 4-temperature flow model and were solved numerically as a two-boundary value problem. The transport properties for viscosity, diffusion and thermal conductivity were taken into account in detail, because flow and thermal conditions just behind shock fronts were expected to vary steeply. The change of vibrational and rotational energies of molecules, and free electron energy due to dissociation and recombination reactions of diatomic molecules were also included. The rotational and vibrational temperature distributions calculated were found to agree very well with experiments.