本文提出一种交错并行的有限体积投影算法求解基于相场法的两相流控制方程组。该算法的实施主要依赖于压力泊松方程的显式推进设计，从而突破投影算法求解不可压Navier-Stokes方程的效率瓶颈。同时，我们提出了一种交错扫描策略来更新节点上的变量，以实现更紧凑的时空耦合。本算法与相场模型相结合，能够高效、准确地捕获相界面的动态拓扑变化。测试算例结果表明：网格量为131072，采用8线程CPU并行时，新提出并行算法的效率达到串行标准投影算法的80倍以上。

In this study, an interleaved parallel finite volume projection algorithm is proposed to solve the two-phase flow control equations based on the phase field method. This strategy relies on the explicit advancement of the pressure Poisson equation, thus breaking through the efficiency bottleneck of the projection algorithm for solving the incompressible Navier-Stokes equations. Moreover, we propose an interleaved scanning strategy to update variables on nodes for compact spatiotemporal coupling. The combination with the phase field method enables accurate capture of interface dynamics and topology at a lower cost. Test results show that with 131072 grids and 8-thread CPU parallelization, the efficiency of the proposed parallel algorithm reaches more than 80 times that of the serial standard projection algorithm.

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