National Science Library, Chinese Academy of Sciences
  登录 机构网站 ENGLISH
您当前的位置是:首页->详细浏览

期刊名称: Applications of Mathematics
Volume:64    Issue:2        Page:225-251
ISSN:0862-7940

On suitable inlet boundary conditions for fluid-structure interaction problems in a channel期刊论文

作者: Valášek Jan Sváček Petr Horáček Jaromír
DOI:10.21136/AM.2019.0267-18

服务链接:
页码: 225-251
被引频次: 0
出版者: Springer Berlin Heidelberg,ACAD SCIENCES CZECH REPUBLIC, INST MATHEMATICS,Springer
期刊名称: Applications of Mathematics
ISSN: 0862-7940
卷期: Volume:64    Issue:2
语言: English
摘要: We are interested in the numerical solution of a two-dimensional fluid-structure interaction problem. A special attention is paid to the choice of physically relevant inlet boundary conditions for the case of channel closing. Three types of the inlet boundary conditions are considered. Beside the classical Dirichlet and the do-nothing boundary conditions also a generalized boundary condition motivated by the penalization prescription of the Dirichlet boundary condition is applied. The fluid flow is described by the incompressible Navier-Stokes equations in the arbitrary Lagrangian-Eulerian (ALE) form and the elastic body creating a part of the channel wall is modelled with the aid of linear elasticity. Both models are coupled with the boundary conditions prescribed at the common interface.The elastic and the fluid flow problems are approximated by the finite element method. The detailed derivation of the weak formulation including the boundary conditions is presented. The pseudo-elastic approach for construction of the ALE mapping is used. Results of numerical simulations for three considered inlet boundary conditions are compared. The flutter velocity is determined for a specific model problem and it is shown that the boundary condition with the penalization approach is suitable for the case of the fluid flow in a channel with vibrating walls.
相关主题: 65N12, Theoretical, Mathematical and Computational Physics, linear elasticity, Mathematics, 76D05, inlet boundary conditions, Optimization, 2D incompressible Navier-Stokes equations, Classical and Continuum Physics, Analysis, Mathematical and Computational Engineering, flutter instability, Applications of Mathematics, flow-induced vibration, 65N30, MATHEMATICS, APPLIED, ELEMENT, MODEL, Channels (Hydraulic engineering), Boundary value problems, Usage, Models, Mathematical models,

相关文献推荐:

问图书管理员更多图书管理员

学科咨询馆员
学科馆员

电话:
邮件:
问图书馆员

图标说明

在线获取原文 原文传递 详细信息 图书在架状态 图书馆际互借 问图书馆员

常见问题

图书馆开放时间 图书馆位置 借阅要求 您在使用中发现的任何错误,都可以向我们 【报告错误】,非常感谢!

作者信息:×