弹丸超声速绕流的 Navier-Stokes 模拟

NavierStokes Computation of SupersonicFlow about a Projectile

本文从轴对称Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程组出发，采用高分辨率对称ＴＶＤ格式数值模拟了包括底部回流区在内的弹丸超声速绕流流场。计算结果从定性和定量上显示了弹体激波结构和底部流动结构的细节，计算的底部阻力系数与实验数据对比是令人满意的。

The axisymmetric NavierStokes flow about the entire projectile including the recirculatory base flow is numerically simulated in the present paper,using a high resolution symmetric TVD scheme. Computed results show the qualitative and quantitative details of shock waves on the projectile and the base flow structure. Computed base drag is compared with experimental data and is found to be in good agreement.