【摘要】 本文提出一种改进的贴体坐标隐式近似因子分解生成方法。由于在分裂矩阵的近似因子中引进与交叉导数有关的参数并选取抛物线变化的加速因子,贴体坐标生成的收敛速度比AF型近似因子分解方法大为加速。改进的近似因子分解方法也用来计算机翼不可压缩绕流压力分布,其结果与其它方法是一致的。更多还原

【Abstract】 An improved implicit approximate factorization algorithm for the generation of body-fitted curvilinear coordinate systems has been developed. Introducing some parameters related to the mixed-derivative term into the split matrix and adopting a quadratic accelerative parameter, we get a significantly faster convergence for the generation of coordinates than the approximate factorization algorithm of the AF type. Airfoil pressure distribution has been computed by the same method and is in good agreement with independent results.更多还原