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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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)|
|Title:||Unstructured Viscous Flow Solution Using Adaptive Hybrid Grids.|
|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|
|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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