首页|Model reduction by constraints, discretization of flow problems and an induced pressure stabilization

Model reduction by constraints, discretization of flow problems and an induced pressure stabilization

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For flow problems, turbulence models and numerical methods can be thought of as model reductions. Herein we consider reduction imposed as a constraint using Lagrange multipliers. Development of this last method recovers the subgrid eddy viscosity method and a new stabilization of the incompressibilty constraint. Analysis of the new incompressibility stabilization reveals that stabilization is only really needed for the finest pressure scales. Copyright (c) 2005 John Wiley & Sons, Ltd.

Navier-Stokessubgrideddy viscosityFINITE-ELEMENT METHODSLARGE-EDDY SIMULATIONBUBBLE FUNCTIONSGALERKIN METHODSTOKES PROBLEMAPPROXIMATIONSFORMULATIONSTABILITYEQUATIONS

Layton W

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Univ Pittsburgh, Dept Math, Pittsburgh, PA 15260 USA

2005

Numerical linear algebra with applications

Numerical linear algebra with applications

ISTP
ISSN:1070-5325
年,卷(期):2005.12(5/6)