Preconditioning Techniques for Nonsymmetric Linear Systems in the Computation of Incompressible Flows

Author:

Manguoglu Murat1,Sameh Ahmed H.1,Saied Faisal2,Tezduyar Tayfun E.3,Sathe Sunil3

Affiliation:

1. Department of Computer Science, Purdue University, 305 North University Street, West Lafayette, IN 47907

2. Computing Research Institute, Purdue University, Room 202, 250 North University Street, West Lafayette, IN 47907

3. Mechanical Engineering, Rice University, MS 321, 6100 Main Street, Houston, TX 77005

Abstract

In this paper we present effective preconditioning techniques for solving the nonsymmetric systems that arise from the discretization of the Navier–Stokes equations. These linear systems are solved using either Krylov subspace methods or the Richardson scheme. We demonstrate the effectiveness of our techniques in handling time-accurate as well as steady-state solutions. We also compare our solvers with those published previously.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

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