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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >An efficient SIMPLER-revised algorithm for incompressible flow with unstructured grids
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An efficient SIMPLER-revised algorithm for incompressible flow with unstructured grids

机译：具有非结构化网格的不可压缩流程的高效简单修正算法

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This paper proposes an efficient segregated solution procedure for the two-dimensional incompressible fluid flow on unstructured grids. The new algorithm is called SIMPLERR (SIMPLERR-revised algorithm). It includes an inner iterative process that consists of a pressure equation solution and an explicit velocity correction, and then, the pressure field is obtained by another solving process for the pressure equation. The features and advantages of the SIMPLERR algorithm are demonstrated by solving a benchmark flow problem, and the results indicate that the SIMPLERR algorithm can maintain a strong stability as the IDEAL algorithm and can converge faster than the SIMPLER algorithm or even than the IDEAL algorithm. The advantage of the SIMPLERR algorithm is especially evident for high-Re and fine-mesh fluid flow cases, where the SIMPLERR algorithm and the IDEAL algorithm can obtain a convergence result but the SIMPLER algorithm cannot. The SIMPLERR algorithm is about two times faster than the IDEAL algorithm.
机译：本文提出了一种有效的分离解决方案，用于在非结构化网格上的二维不可压缩流体流动。新算法称为SimplerR（SimpleR-Refaced算法）。它包括内部迭代过程，该过程包括压力方程解决方案和显式速度校正，然后，通过用于压力方程的另一个求解过程获得压力场。通过解决基准流动问题来证明SimpleRER算法的特征和优点，结果表明，SimpleRER算法可以保持强的稳定性作为理想算法，并且可以比更简单的算法或甚至比理想算法更快地收敛。 SimpleRER算法的优点对于高Re和微网流体流动例特别明显，其中SimpleRER算法和理想算法可以获得收敛结果，但更简单的算法不能。 SimpleRER算法比理想算法快三倍。

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