A numerical method for solving the Oseen-type problem in an L-shaped domain
Author(s) -
Alexey V. Rukavishnikov
Publication year - 2018
Publication title -
vyčislitelʹnye metody i programmirovanie
Language(s) - English
Resource type - Journals
eISSN - 1726-3522
pISSN - 0507-5386
DOI - 10.26089/nummet.v19r106
Subject(s) - domain (mathematical analysis) , reentrancy , type (biology) , rotation (mathematics) , boundary (topology) , finite element method , fictitious domain method , mathematics , boundary value problem , mathematical analysis , computer science , algorithm , geometry , physics , biology , ecology , programming language , thermodynamics
Для задачи типа Озеена в вихревой форме в многоугольной области с входящим тупым углом на границе определено $R_{\nu}$-обобщенное решение. Для ее приближенного решения построен весовой метод конечных элементов. Численные эксперименты модельной задачи в $L$-образной области показали преимущества предложенного метода. In this paper we introduce the notion of an $R_{\nu}$-generalized solution to the Oseen-type problem in rotation form in a polygonal domain with a reentrant obtuse angle on its boundary. We propose a weighted finite element method to solve this problem approximately. A number of numerical experiments performed on a model problem in an $L$-shaped domain show the advantages of the proposed method.
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