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A direct Eulerian GRP scheme for relativistic hydrodynamics: One-dimensional case

机译:相对论流体力学的直接欧拉GRP方案:一维情况

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摘要

The paper proposes a direct Eulerian generalized Riemann problem (GRP) scheme for one-dimensional relativistic hydrodynamics. It is an extension of the Eulerian GRP scheme for compressible non-relativistic hydrodynamics proposed in [M. Ben-Artzi, J.Q. Li, G. Warnecke, A direct Eulerian GRP scheme for compressible fluid flows, J. Comput. Phys. 218 (2006) 19-43]. Two main ingredients, the Riemann invariant and the Rankine-Hugoniot jump condition, are directly used to resolve the local GRP in the Eulerian formulation, and thus the crucial and delicate Lagrangian treatment in the original GRP scheme [3] can be avoided. Several numerical examples are given to demonstrate the accuracy and effectiveness of the proposed GRP scheme.
机译:针对一维相对论流体力学,提出了一种直接的欧拉广义黎曼问题(GRP)方案。它是欧拉GRP方案的扩展,适用于[M.本·阿齐(J.Q. Li,G。Warnecke,可压缩流体流的直接欧拉GRP方案,J。Comput。物理218(2006)19-43]。 Riemann不变量和Rankine-Hugoniot跳跃条件是两个主要成分,直接用于解决欧拉公式中的局部GRP,因此可以避免原始GRP方案中关键而精细的拉格朗日处理[3]。给出了几个数值示例,以证明所提出的GRP方案的准确性和有效性。

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