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A numerical approximation of the thermal coupling of fluids and solids
Author(s) -
Principe Javier,
Codina Ramon
Publication year - 2008
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1856
Subject(s) - domain decomposition methods , context (archaeology) , domain (mathematical analysis) , coupling (piping) , thermal , mathematical optimization , flow (mathematics) , computer science , mathematics , mechanics , physics , mechanical engineering , thermodynamics , mathematical analysis , engineering , finite element method , geology , paleontology
In this article we analyze the problem of the thermal coupling of fluids and solids through a common interface. We state the global thermal problem in the whole domain, including the fluid part and the solid part. This global thermal problem presents discontinuous physical properties that depend on the solution of auxiliary problems on each part of the domain (a fluid flow problem and a solid state problem). We present a domain decomposition strategy to iteratively solve problems posed in both subdomains and discuss some implementation aspects of the algorithm. This domain decomposition framework is also used to revisit the use of wall function approaches used in this context. Copyright © 2008 John Wiley & Sons, Ltd.