超声速前机身及翼－身组合体的全速势方程数值计算

Full Potential Computations for Fortebodies and Wing-Body Combinations at supersonic speed

通过数值求解全速势方程，计算了超声速来流的前机身及翼－身组合体。当流场存在亚声速区时，在此区域内采用中心差分格式，迭代求解，并引入多重网格技术，加快收敛；当流场中某一区域沿某一方向是超声速时，在此区域内采用沿该方向的推进解法。计算结果表明，本文的方法可靠，结果准确，可以向工程应用方面推广。

Forebodies and wing-body combinations at supersonic speed are calculated by sovling steady full potential equation.The iteration method based on central difference scheme and multi-grid technique is used for the calculations of supersonic flowfields with embedded subsonic regions and marching technique for solving pure supersonic flowfields.Test cases demonstrate that the present method is reliable and economic and can be applied for engineering purposes.