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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.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||
|---|---|---|---|---|---|---|---|
| Title: | Application of point and line implicit Preconditioning Techniques to unsteady flow simulations | ||||||
| Authors: |
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| Date: | November 2012 | ||||||
| Refereed publication: | 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: | L AR - 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: | 16 Nov 2012 15:18 | ||||||
| Last Modified: | 10 Jan 2013 14:07 |
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