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Radespiel, R. and Kroll, N. (1990) Mehrgitterverfahren mit spezieller Vergroeberungsvorschrift zur Berechnuug von reibungsbehafteten Hyperschallstroemungen mit hoher Genauigkeit. 7. DGLR-Fachsymposium "Stroemungen mit Abloesung", 7.-9. November 1990, Aachen.
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Abstract
A multigrid scheme based on Runge-Kutta time stepping is combined with an Upwind TVD spatial discretization. For hypersonic viscous flow problems the system of discretized equations is stiff which can resultin slow convergence or divergence of the solution. Some numerical techniques to remove stiffness and enhance robustness are discussed in detail. These are local time stepping, viscous eigenvalue residual smoothing and multigrid with semicoarsening. Numerical computations demonstrate the efficiency of the present approach.
| Item URL in elib: | https://elib.dlr.de/35841/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Additional Information: | LIDO-Berichtsjahr=1990, note=LSEG; 200, | ||||||||||||
| Title: | Mehrgitterverfahren mit spezieller Vergroeberungsvorschrift zur Berechnuug von reibungsbehafteten Hyperschallstroemungen mit hoher Genauigkeit. | ||||||||||||
| Authors: |
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| Date: | 1990 | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | Runge-Kutta, Semicoarsening, Hypersonic Flow, Viscous Flow, Residual averaging | ||||||||||||
| Event Title: | 7. DGLR-Fachsymposium "Stroemungen mit Abloesung", 7.-9. November 1990, Aachen | ||||||||||||
| HGF - Research field: | UNSPECIFIED | ||||||||||||
| HGF - Program: | other | ||||||||||||
| HGF - Program Themes: | other | ||||||||||||
| DLR - Research area: | UNSPECIFIED | ||||||||||||
| DLR - Program: | no assignment | ||||||||||||
| DLR - Research theme (Project): | W - Zukünftige Raumtransporter - Entwurf und Simulationsmethoden für Raumtransporter (old) | ||||||||||||
| Location: | Köln-Porz , Braunschweig , Göttingen | ||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik | ||||||||||||
| Deposited By: | DLR-Beauftragter, elib | ||||||||||||
| Deposited On: | 03 Apr 2006 | ||||||||||||
| Last Modified: | 27 Apr 2009 10:04 |
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