Stability analysis of the inverse Lax-Wendroff boundary treatment for high order upwind-biased finite difference schemes

Stability analysis of the inverse Lax-Wendroff boundary treatment for high order upwind-biased finite difference schemes
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高阶迎风偏置有限差分格式逆 Lax-Wendroff 边界处理的稳定性分析

DOI:
10.1016/j.cam.2015.11.038
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发表时间:
2016-06
影响因子:
2.4
通讯作者:
张梦萍
张梦萍
中科院分区:
数学2区
文献类型:
--
作者:
T. Li;C.-W. Shu;张梦萍

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本文研究了一维双曲型守恒律方程初边值问题的线性稳定性问题,采用一类保守的高阶迎风偏置差分格式,该格式是加权基本无振荡(韦诺)格式的原型.流入边界采用所谓的逆Lax-Wendroff(ILW)或简化逆Lax-Wendroff(SILW)方法处理,流出边界采用经典的高阶外推法处理。在完全离散的情况下,使用三阶总变差递减(TVD)龙格库塔时间离散。GKS(Gustafsson,Kreiss和Sundström)和特征值分析进行半离散和全离散计划。这两种不同的分析技术产生了一致的结果。数值试验证明了分析预测的稳定性结果。
In this paper, we consider linear stability issues for one-dimensional hyperbolic conservation laws using a class of conservative high order upwind-biased finite difference schemes, which is a prototype for the weighted essentially non-oscillatory (WENO) schemes, for initial–boundary value problems (IBVP). The inflow boundary is treated by the so-called inverse Lax–Wendroff (ILW) or simplified inverse Lax–Wendroff (SILW) procedure, and the outflow boundary is treated by the classical high order extrapolation. A third order total variation diminishing (TVD) Runge–Kutta time discretization is used in the fully discrete case. Both GKS (Gustafsson, Kreiss and Sundström) and eigenvalue analyses are performed for both semi-discrete and fully discrete schemes. The two different analysis techniques yield consistent results. Numerical tests are performed to demonstrate the stability results predicted by the analysis.
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