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HIERARCHY OF PRECONDITIONING TECHNIQUES FOR THE SOLUTION OF THE NAVIER-STOKES EQUATIONS DISCRETIZED BY 2ND ORDER UNSTRUCTURED FINITE VOLUME METHODS

Langer, Stefan (2012) HIERARCHY OF PRECONDITIONING TECHNIQUES FOR THE SOLUTION OF THE NAVIER-STOKES EQUATIONS DISCRETIZED BY 2ND ORDER UNSTRUCTURED FINITE VOLUME METHODS. ECCOMAS 2012, 10. - 14. Sept. 2012, Wien, Österreich.

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Abstract

This document presents a hierarchy of preconditioning techniques embedded into a multistage Runge-Kutta method applied to approximate steady state solutions of high Reynolds number viscous flows. The method is used as smoother in an agglomerated multigrid method. Different ways are suggested to construct coarse grid levels and coarse grid equations. Finally several of the possible combinations are suggested and investigated. Numerical examples demonstrate the superiorities and inferiorities of some of these methods.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:HIERARCHY OF PRECONDITIONING TECHNIQUES FOR THE SOLUTION OF THE NAVIER-STOKES EQUATIONS DISCRETIZED BY 2ND ORDER UNSTRUCTURED FINITE VOLUME METHODS
Authors:
AuthorsInstitution or Email of Authors
Langer, StefanUNSPECIFIED
Date:September 2012
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:implicit Runge-Kutta methods, Navier-Stokes equations, high Reynolds number, agglomeration multigrid
Event Title:ECCOMAS 2012
Event Location:Wien, Österreich
Event Type:international Conference
Event Dates:10. - 14. Sept. 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Dr.rer.nat. Stefan Langer
Deposited On:15 Nov 2012 11:05
Last Modified:11 Jan 2013 15:44

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