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Application of point and line implicit Preconditioning Techniques to unsteady flow simulations

Li, Dian and Langer, Stefan (2012) Application of point and line implicit Preconditioning Techniques to unsteady flow simulations. 18. DGLR-Fach-Symposium der STAB, 06. - 07. November 2012, Stuttgart, Deutschland.

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Official URL: http://www.dlr.de/as/desktopdefault.aspx/tabid-652/1104_read-1678/

Abstract

To improve the efficiency for unsteady flow simulations a modification of a family of preconditioners known for steady state simulations is investigated when applied to unsteady flow simulations. The modification applied to specific – namely point and line implicit preconditioners – is implemented into an existing CFD code. For high Reynolds number turbulent flows the gain with respect to efficiency of the preconditioned methods will be demonstrated when compared with the classical solution methods, explicit Runge-Kutta with local time-stepping and matrix free LU-SGS.

Item URL in elib:https://elib.dlr.de/78619/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Application of point and line implicit Preconditioning Techniques to unsteady flow simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Li, DianUNSPECIFIEDUNSPECIFIED
Langer, StefanUNSPECIFIEDUNSPECIFIED
Date:November 2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:Jahresbericht 2012
Page Range:pp. 152-153
Series Name:STAB-Mitteilung
Status:Published
Keywords:High Reynold number viscous flows, unsteady simulation
Event Title:18. DGLR-Fach-Symposium der STAB
Event Location:Stuttgart, Deutschland
Event Type:national Conference
Event Dates:06. - 07. November 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Langer, Dr.rer.nat. Stefan
Deposited On:16 Nov 2012 15:18
Last Modified:10 Jan 2013 14:07

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