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以小钝锥体为对象建立二维几何模型,利用COMSOL Multiphysics软件对等离子体流场控制方程组进行求解,对高超声速气流流过模型所产生的等离子体流场进行数值模拟。仿真得到了在模型头部激波、尾部膨胀波和尾后激波的共同作用下,考虑烧蚀反应时流场的速度、温度、压强和等离子体电子数密度分布,重点分析了钝锥体模型等离子体包覆层和尾后电子分布的特征和成因。可以为高超声速飞行器的探测和控制提供重要的借鉴和参考。
A two-dimensional geometric model was set up for the small blunt cone, and the plasma flow field governing equation system was solved by COMSOL Multiphysics software. The plasma flow field generated by the hypersonic flow was numerically simulated. Simulation results show that under the combined action of the head shock, the tail expansion wave and the tail shock, the velocity, temperature, pressure and plasma electron density distribution during the ablation reaction are considered. Characteristics and Genesis of Electron Distribution in the Model Plasma Coating and Tail. Can provide important reference and reference for the detection and control of hypersonic vehicles.