AN IMPROVEMENT OF THE COMPUTATIONAL EFFICIENCY OF THE SOLA METHOD
AN IMPROVEMENT OF THE COMPUTATIONAL EFFICIENCY OF THE SOLA METHOD
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SOLA方法计算效率的提高
DOI：
10.1299/jsmeb.37.821
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
M. Hirano
中科院分区：
文献类型：
--
作者：
A. Tomiyama;M. Hirano
SOLA（solution algorithm）方法是分析不可压缩流动最广泛使用的方法之一。然而，这种方法往往需要多次迭代，以获得一个收敛的解决方案，瞬态流的实际问题。因此，在本研究中，这种方法进行了理论分析，以澄清为什么这种方法可以得到收敛的解决方案。证明了SOLA方法与SMAC（简化标记和单元）方法对于计算域内部单元是一致的。另一方面，对于与边界小区相邻的小区，它与SMAC方法不同。因此，一个改进的SOLA方法，提高了计算效率，考虑到边界条件的迭代过程中。结果表明，改进后的SOLA方法比原有的SOLA方法能更有效地分析瞬态流场。
The SOLA (solution algorithm) method is one of the most widely used methods for analyzing incompressible flows. However, this method often requires a number of iterations to obtain a converged solution for a practical problem on transient flow. Hence, a theoretical analysis of this method was carried out in the present study to clarify the reason why this method can give converged solutions. It was proven that the SOLA method is identical to the SMAC (simplified marker and cell) method for the interior cells of the computational domain. On the other hand, it is not identical to the SMAC method for the cells adjacent to the boundary cells. Hence, a modified SOLA method which improves computational efficiency was developed by taking into account boundary conditions in the iteration process. It was demonstrated that the modified SOLA method could analyze transient flow more efficiently than the original SOLA.