高超声速球锥组合体流场数值分析

用数值模拟法研究了高超声速球锥组合体的层流流场特性与热行为，给出了流场计算方法与格式。研究结果表明：球锥组合体压缩拐角在高超声速下出现流动分离，其流动特性受壁面温度的影响极大；提高壁面温度使压缩拐点处分离点位置前移，再附点位置后移，涡心位置提高，分离范围扩大，同时降低球锥组合体热流的分布，球锥组合体头部热流明显减小。

Numerical Simulation of Blunted Cone-Flare in Hypersonic Flow

The flow characteristics and thermal behavior of hypersonic blunt cone-flare was studied using the numerical simulation in this paper. The computation method and format of the flow were given out. The simulation results showed that the flow of blunt cone-flare in the corner was separated under hypersonic, and their behavior were affected by the wall temperature greatly. The separation point was forward, the reattachment point was moved back, the scope of separation was extended, and the center of vortex was raised when the wall temperature was higher. And so were the blunt cone flare of the distribution of heat reduced, the blunt-cone head was expanded significantly and the heat value was lower.