arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2003.05677math.NAcs.NA
收藏

有限体积和间断Galerkin格式模拟稀薄固体边界流动的数值边界条件

Numerical boundary conditions in Finite Volume and Discontinuous Galerkin schemes for the simulation of rarefied flows along solid boundaries

Céline Baranger, Nicolas Hérouard, Julien Mathiaud, Luc Mieussens

摘要:

对稀薄气体动力学BGK方程的两种标准有限体积格式和间断Galerkin方法进行了数值比较。我们特别注意的数值边界条件,以保持收敛速率的方法。我们的大部分分析依赖于一个一维的问题(Couette流),但我们也提出了一些结果的二维空气动力学流。

英文摘要:

We present a numerical comparison between two standard finite volume schemes and a discontinuous Galerkin method applied to the BGK equation of rarefied gas dynamics. We pay a particular attention to the numerical boundary conditions in order to preserve the rate of convergence of the method. Most of our analysis relies on a 1D problem (Couette flow), but we also present some results for a 2D aerodynamical flow.

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。

↑