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首页> 外文期刊>Computer Methods in Applied Mechanics and Engineering >A toolkit for numerical simulation of PDEs. Ⅱ. Solving generic multiphysics problems
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A toolkit for numerical simulation of PDEs. Ⅱ. Solving generic multiphysics problems

机译：PDE数值模拟的工具包。 Ⅱ。解决通用多物理场问题

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Numerical simulations of partial different equations are used in a variety of domains, allowing complete testing and simulation of a product or process even before it is created. However, numerical solvers are not used in all the domains where such equations arise due to the lack of available software or knowledge of numerical methods by scientists. The difficulty of writing a numerical solver is even greater for multiphysics problems, which combine distinct but coupled physical phenomena into a single simulation. In this article, we demonstrate how an existing high-order accurate generic numerical toolkit based on the finite-volume method was modified to allow complex multiphysics problems to be solved easily. We describe how data exchange between the different physical phenomena, the most critical process of a generic multiphysics solver, was made possible using variable association. The modifications to the generic numerical toolkit are detailed and numerical results to both field and interface coupling problems are presented.
机译：在许多领域中都使用部分不同方程的数值模拟，甚至在创建产品或过程之前就可以对其进行完整的测试和仿真。但是，由于缺乏可用的软件或科学家对数值方法的了解，数值求解器并未在出现此类方程式的所有领域中使用。对于多物理场问题，编写数值解算器的难度甚至更大，这些问题将独特但又耦合的物理现象组合到单个模拟中。在本文中，我们演示了如何修改基于有限体积方法的现有高阶精确通用数值工具包，以使复杂的多物理场问题易于解决。我们描述了如何使用变量关联来实现不同物理现象之间的数据交换，这是通用多物理场求解器的最关键过程。详细介绍了对通用数值工具包的修改，并给出了针对现场和界面耦合问题的数值结果。

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