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arXiv 1208.4772math.NAcs.NA
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面向欧拉方程的GPU上曲边单元非结构间断Galerkin方法

A curved-element unstructured discontinuous Galerkin method on GPUs for the Euler equations

Universität Trier(特里尔大学);Imperial College London(帝国理工学院)

M. Siebenborn, V. Schulz, S. Schmidt

AI总结:

本文针对欧拉方程,提出一种基于GPU的曲边单元非结构间断Galerkin方法,通过线性弹性方程实现高阶边界近似,并利用大规模并行求解器验证性能。

摘要:

本文考虑Runge-Kutta间断Galerkin方法(RKDG)求解双曲方程,实现空间和时间的高阶离散。我们旨在GPU上高效实现DG求解欧拉方程。提出一种网格曲率方法以正确解析区域边界。该方法基于线性弹性方程,可实现任意高阶边界近似。为了展示边界曲率的性能,我们在图形处理器上实现并利用大规模并行求解器求解气体动力学欧拉方程。

英文摘要:

In this work we consider Runge-Kutta discontinuous Galerkin methods (RKDG) for the solution of hyperbolic equations enabling high order discretization in space and time. We aim at an efficient implementation of DG for Euler equations on GPUs. A mesh curvature approach is presented for the proper resolution of the domain boundary. This approach is based on the linear elasticity equations and enables a boundary approximation with arbitrary, high order. In order to demonstrate the performance of the boundary curvature a massively parallel solver on graphics processors is implemented and utilized for the solution of the Euler equations of gas-dynamics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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