【摘要】 在这篇文章里,我们提出了一种改进的有限分析解算法,它能够避免复杂的指数运算和级量求和,节省大量的计算时间,并能在同样的网格尺寸条件下,具有模拟比原算法高20倍以上雷诺数的流体流动问题的能力。对分离流的数值实验表明:对同样的雷诺数,这种算法能得到和原算法非常一致的计算结果。而高雷诺数下的数值结果也是令人满意的。更多还原

【Abstract】 In this paper, the improved finite analytic method has been proposed for calculating the fluid flow with the large separation region at the high Reno-Ids number. By this algorism, the complex operations caused by exponential functions and series sum can be removed and a lot of the computational time can be saved. The Renolds number of the flow which can be resolved with this method is about twenty times as much as that of the flow with the or iginal one on the same computational grids. Numerical experiments show that reults obtained with both methods at the same boudary conditions and the same Renolds number are extremely similar and the solutions of the flow at the high Renolds number are satisfactorily.更多还原