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arXiv math/0108122math.NAcs.NAmath.AP
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有限差分方法求解含界面泊松方程的收敛性

Convergence of Finite Difference Methods for Poisson's Equation with Interfaces

Xu-Dong Liu, Thomas C. Sideris

AI总结:

本文通过弱形式研究含界面跳跃的不连续变系数泊松方程,证明了解的存在性、唯一性和正则性,并建立了抽象框架以证明由弱问题导出的有限差分方法(包括Ghost Fluid方法)的收敛性。

摘要:

本文研究具有界面跳跃的不连续变系数泊松方程的弱形式。获得了该问题解的存在性、唯一性和正则性。结果表明,Fedkiw、Kang和Liu提出的Ghost Fluid方法应用于该问题时,可以通过弱形式的离散化自然得到。给出了一个抽象框架,用于证明由弱问题导出的有限差分方法的收敛性,并由此证明了Ghost Fluid方法的收敛性。

英文摘要:

In this paper, a weak formulation of the discontinuous variable coefficient Poisson equation with interfacial jumps is studied. The existence, uniqueness and regularity of solutions of this problem are obtained. It is shown that the application of the Ghost Fluid Method by Fedkiw, Kang, and Liu to this problem can be obtained in a natural way through discretization of the weak formulation. An abstract framework is given for proving the convergence of finite difference methods derived from a weak problem, and as a consequence, the Ghost Fluid Method is proven to be convergent.

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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