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Unstructured Viscous Flow Solution Using Adaptive Hybrid Grids.

Galle, M. (1995) Unstructured Viscous Flow Solution Using Adaptive Hybrid Grids. In: Proc. NASA Conference Publication 3316, ICASE/LaRC Workshop on Adaptive Grid Methods, Hampton, VA, 7.-9.11.1994., pp. 171-180.

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Abstract

A three dimensional finite volume scheme based on hybrid grids both tetrahedral and hexahedral cells is presented. The application to hybrid grids offers the possibility to combine the flexibility of tetrahedral meshes with the accuracy of hexahedral grids. An algorithm to compute a dual mesh for the entire computational domain was developed. The dual mesh technique guarantees conservation in the whole flow field even at interfaces between hexahedral and tetrahedral domains and enables the employment of an accurate upwind flow solver. The hybrid mesh can be adapted to the solution by dividing cells in areas of insufficient resolution. The method is tested on different viscous and inviscid cases for hypersonic, transsonic and subsonic flows.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996,
Title:Unstructured Viscous Flow Solution Using Adaptive Hybrid Grids.
Authors:
AuthorsInstitution or Email of Authors
Galle, M.UNSPECIFIED
Date:1995
Journal or Publication Title:Proc. NASA Conference Publication 3316, ICASE/LaRC Workshop on Adaptive Grid Methods, Hampton, VA, 7.-9.11.1994.
Page Range:pp. 171-180
Status:Published
Keywords:hybrid grids, dual mesh technique, hexahedral and tetrahedral cells, adaptation criteria, cell division
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L TG - Querschnittstechnologien
DLR - Research theme (Project):L - Systems & Cabin
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:06

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