【摘要】 该文利用二维可压缩雷诺平均Navier Stokes方程,采用k ε湍流模式,运用半离散有限体积法,对捆绑火箭助推器和芯级之间的激波边界层干扰进行了二维数值模拟.数值结果表明,在激波边界层的干扰下,壁面边界层流动出现了分离和再附过程,压力和温度出现激烈变化.更多还原

【Abstract】 A two-dimensional compressible Reynolds averaged Navier-Stokes solver with a k-ε turbulence model is applied to analyze the flow character of the shock/boundary-layer interaction between the rocket and the booster. A semi-discrete finite volume method on a structured mesh grid is used. The results indicate that separation and reattachment occur on the boundary layer of the rocket because of the shock impinging with sharp changes in static pressure and temperature.更多还原