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A Parallel Domain Decomposition Method For Coupling Of Surface And Groundwater Flows

机译:地表水流与地下水流耦合的并行域分解方法

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摘要

In this paper, we construct a robust parallel method based on a recently developed non-overlapping domain decomposition methodology to accurately model natural coupling of surface and groundwater flows. Stokes and Darcy equations are formulated and solved within the surface and subsurface regions, respectively. A new type of Robin-Robin boundary condition is proposed on the common boundary for the coupling of those systems. The formulation provides great flexibility for multi-physics coupling and is suitable for efficient parallel implementation. Meanwhile, it is stable with inherent system parameter variation. A numerical example is provided to verify the theory.
机译:在本文中,我们基于最近开发的非重叠域分解方法构造了一种鲁棒的并行方法,以准确地模拟地表水和地下水流的自然耦合。斯托克斯方程式和达西方程式分别在地表和地下区域内制定和求解。在公共边界上提出了一种新型的Robin-Robin边界条件,用于这些系统的耦合。该公式为多物理场耦合提供了极大的灵活性,并且适合于高效的并行实现。同时,它具有固有系统参数变化的稳定性。数值例子验证了该理论。

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