Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10356621 | Journal of Computational Physics | 2012 | 14 Pages |
Abstract
The effects of the condition number on convergence characteristics and solution quality for the preconditioned Navier-Stokes equations are studied. A general approach to the construction of preconditioning parameters is proposed to account for the effects of the condition number on these parameters. To verify this technique, laminar flows past a circular cylinder at Reynolds numbers of 20 and 40, and laminar flows past a NACA0012 airfoil at Reynolds numbers of 2500 and 5000 are solved. It is shown that the condition number has effects on the convergence characteristics and solution qualities, and also that a condition number exists that optimizes the convergence characteristics and solution quality.
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Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Sang-Hyeon Lee,