Choice of variables and preconditioning for time dependent problems

Eli Turkel, Veer N. Vatsa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We consider the use of low speed preconditioning for time dependent problems. These are solved using a dual time step approach. We consider the effect of this dual time step on the parameter of the low speed preconditioning. In addition, we compare the use of two sets of variables, conservation and primitive variables, to solve the system. We show the effect of these choices on both the convergence to a steady state and the accuracy of the numerical solutions for low Mach number steady state and time dependent flows.

Original languageEnglish
Title of host publication16th AIAA Computational Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624100864
StatePublished - 2003
Event16th AIAA Computational Fluid Dynamics Conference 2003 - Orlando, FL, United States
Duration: 23 Jun 200326 Jun 2003

Publication series

Name16th AIAA Computational Fluid Dynamics Conference

Conference

Conference16th AIAA Computational Fluid Dynamics Conference 2003
Country/TerritoryUnited States
CityOrlando, FL
Period23/06/0326/06/03

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