Publication Results

Code: 13/2014
Title: Supremizer stabilization of POD-Galerkin approximation of parametrized Navier-Stokes equations
Date: Monday 21st April 2014
Author(s) : Ballarin, F.; Manzoni, A.; Quarteroni, A.; Rozza, G.
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Abstract: In this work we present a stable proper orthogonal decomposition (POD)-Galerkin approximation for parametrized steady Navier-Stokes equations. The stabilization is guaranteed by the use of supremizers solutions that enrich the reduced velocity space. Numerical results show that an equivalent inf-sup condition is fulfilled, yielding stability for both velocity and pressure. Our stability analysis is first carried out from a theoretical standpoint, then confirmed by numerical tests performed on a parametrized two-dimensional backward facing step flow.

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International Journal for Numerical Methods in Engineering