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以平板上直立半无限高圆柱体为研究对象 ,采用 Roe三阶通量差分分裂格式求解雷诺平均 N- S方程 ,数值模拟研究了高超声速且壁面有传热条件下三维湍流流场的激波边界层干扰特性 ,物面压力分布计算值与实验值吻合良好 ,数值模拟结果可见圆柱上游分离区流场是一个马蹄形五涡结构且存在有二次分离激波 ,这是一种值得深入研究的流动新现象。
Taking the upright and semi-infinite high cylinder on the plate as the research object, the Roe’s third-order flux differential split scheme was used to solve the Reynolds averaged N-S equation. The numerical simulation was carried out to study the shock wave of the hypersonic three-dimensional turbulent flow field with wall heat transfer The boundary layer disturbance and surface pressure distribution agree well with the experimental values. The numerical simulation shows that the flow field in the upstream separation zone of a cylinder is a horseshoe-shaped five-vortex structure with a secondary separation shock, which is worth further study New phenomenon of mobile.