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Iterative substructuring methods for incompressible non‐isothermal flows and its application to indoor air flow simulation
Author(s) -
Knopp T.,
Lube G.,
Gritzki R.,
Rösler M.
Publication year - 2002
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.409
Subject(s) - discretization , compressibility , mathematics , iterative method , finite element method , flow (mathematics) , incompressible flow , turbulence , advection , computer science , mathematical optimization , mechanics , mathematical analysis , physics , engineering , structural engineering , thermodynamics
The parallel solution of the incompressible Navier–Stokes equations coupled with the energy equation is considered. For turbulent flows, the k / ε model together with a modified wall‐function concept is used. The iterative process requires the fast solution of advection–diffusion reaction and Oseen‐type problems. These linearized problems are discretized using stabilized finite element methods. We apply a coarse–granular iterative substructuring method which couples the subdomain problems via Robin‐type interface conditions. Then we apply the approach to the simulation of indoor air flow problems. Copyright © 2002 John Wiley & Sons, Ltd.