单向波动方程的有限差分稳定性分析

K. Habib
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引用次数: 0

摘要

在科学、工程和技术领域中有许多问题可以用微分方程的形式来解决。本文研究了具有Drichlet边界条件的一维时变双曲型方程的有限差分法Lax- Wondroff一步法、Lax- Wondroff两步法和后向时中心空间的收敛性。我们给出了该方案的推导,并使用python软件开发了一个计算机程序来实现它。在数值问题的支持下,确定了这些格式的收敛性。对于生长因子G的任意值,显式格式收敛且条件稳定,隐式格式收敛且无条件稳定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
STABILITY ANALYSIS OF FINITE DIFFERENCE METHOD FOR ONE WAY WAVE EQUATION
There are many problems in the field of science, engineering and technology which can be solved by differential equations formulation. In this paper we consider the convergence of finite difference method Lax -Wondroff one step, Lax- Wondroff two step methods and Backward time central space for solving one dimensional, time-dependent hyperbolic equation with Drichlet boundary condition. We present the derivation of the schemes and develop a computer program using python software to implement it. By the support of the numerical problems convergence of the schemes have been determined. The explicit scheme is convergent and conditionally stable and implicit scheme is convergent and unconditionally stable for any value of growth factor G .
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