本文对求解不可压缩流体流动和传热问题提出了一种全隐算法.该算法被称为CLEAR(Coupled and Linked Equations Algorithm Revised).该算法不同与SIMPLE系列算法之处在于,它用直接求解的压力改进速度,而不引入压力修正项.完全考虑了邻点速度的影响,速度和压力的耦合得到很好的保证.因此在很大程度上加快了迭代的收敛速度,而且可以通过引入第二松弛因子,对迭代过程进行控制.本文详细阐述了CLEAR算法的数学原理和计算步骤,并讨论与SIMPLER算法的区别.在本文下篇中用五个算例对CLEAR算法和SIMPLER算法进行比较,证明了该算法的可行性.
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