Iterative substructuring methods for incompressible non‐isothermal flows and its application to indoor air flow simulation | Zendy

Knopp T. | Zendy; Lube G. | Zendy; Gritzki R. | Zendy; Rösler M. | Zendy

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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.

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