摘要
一种加速SIMPLE算法迭代收敛的方案是把SIMPLER与SIMPLEC两种算法结合起来,压力值通过求解压力Poisson方程获得,速度修正值计算式也考虑到了邻点速度修正值的影响。对该方案给出了详细的求解步骤,并通过对长江中游安庆河段平面二维水流流场的计算,将该方案与SIMPLE,SIMPLEC,SIMPLER算法进行了对比。结果表明:该方案有着更好的收敛特性,并且能节省数值计算的时间。
An improvement of the SIMPLE algorithm is proposed by combing SIMPLER and SIMPLEC together. In this improved algorithm, the pressure field was determined by the way adopted in the SIMPLER algorithm, while consistency of velocity correction equation by using the method adopted in the SIMPLEC algorithm. Detailed process of the improved algorithm is proposed in this paper. Numerical experiment on the Anqing beach of the Yangtze River shows that this improved scheme can enhance the convergence rate for SIMPLE algorithm.
出处
《水运工程》
北大核心
2008年第12期9-14,共6页
Port & Waterway Engineering
