A Mesh less Regularization Method for a Two-Dimensional Two-Phase Linear Inverse Stefan Problem

被引:11
作者
Johansson, B. Tomas [1 ]
Lesnic, Daniel [2 ]
Reeve, Thomas [3 ]
机构
[1] Linkoping Univ, Dept Sci & Technol, S-58183 Linkoping, Sweden
[2] Univ Leeds, Dept Appl Math, Leeds LS2 9JT, W Yorkshire, England
[3] Univ Birmingham, Sch Math, Birmingham B15 2TT, W Midlands, England
基金
英国工程与自然科学研究理事会;
关键词
Heat conduction; method of fundamental solutions (MFS); inverse Stefan problem; two-phase change; 2 SPACE VARIABLES; FUNDAMENTAL-SOLUTIONS; HEAT-CONDUCTION; CAUCHY-PROBLEM; EQUATIONS;
D O I
10.4208/aamm.2013.m77
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, a meshless regularization method of fundamental solutions is proposed for a two-dimensional, two-phase linear inverse Stefan problem. The numerical implementation and analysis are challenging since one needs to handle composite materials in higher dimensions. Furthermore, the inverse Stefan problem is ill-posed since small errors in the input data cause large errors in the desired output solution. Therefore, regularization is necessary in order to obtain a stable solution. Numerical results for several benchmark test examples are presented and discussed.
引用
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页码:825 / 845
页数:21
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