A method that combines VOSET and IDEAL was previously presented by the present authors for computing incompressible two-phase flow and heat transfer problems. The technique could provide an accurate calculation of a high-resolution phase interface. However, this method still has a considerable computational burden for complex transient two-phase flow and heat transfer problems. Therefore, to further optimize VOSET + IDEAL, the effects of five different algebraic equation solution methods (G-S point iteration, ADI, SIP, Bi-CGSTAB, and BCT-Bi-CGSTAB) on the solving performance of VOSET + IDEAL are analyzed using three typical two-phase examples. It can be concluded that: (1) the convergence rate of VOSET + IDEAL could be sped up as the efficiency of the algebraic equation solution methods improves, which is very different from the steady flow and heat transfer problems; (2) BCT-Bi-CGSTAB is the most efficient way among the five algebraic equation solution methods for increasing the convergence rate of VOSET + IDEAL. The research results can guide developing a more efficient way of simulating two-phase flows.

本作者先前提出了一种结合VOSET和IDEAL的方法来计算不可压缩的两相流动和传热问题。该技术可以提供高分辨率相位界面的准确计算。然而，该方法对于复杂的瞬态两相流动和传热问题仍然具有相当大的计算负担。因此，为了进一步优化VOSET + IDEAL，使用以下三种方法分析了五种不同的代数方程求解方法（GS点迭代，ADI，SIP，Bi-CGSTAB和BCT-Bi-CGSTAB）对VOSET + IDEAL求解性能的影响。典型的两阶段示例。可以得出以下结论：（1）随着代数方程求解方法效率的提高，可以加快VOSET + IDEAL的收敛速度，这与稳定流动和传热问题大不相同；（2）BCT-Bi-CGSTAB是五种代数方程求解方法中提高VOSET + IDEAL收敛速度的最有效方法。研究结果可以指导开发一种更有效的模拟两相流的方法。