The generation of hybrid grids incorporating prismatic regions for viscous flow calculations
Conference
·
OSTI ID:416576
- Aircraft Research Association Ltd., Bedford (United Kingdom)
The extension of the SAUNA hybrid block-structured/unstructured mesh generation system to meet the demands of accurate Reynolds-averaged Navier-Stokes simulation is considered. For regions where block-structured meshes are employed, no changes to the basic philosophy are required. However, it is argued that semi-structured prismatic meshes should be used in shear layer regions in preference to highly anisotropic tetrahedra. Many of the benefits of unstructured meshes are thereby maintained without incurring significant computational overheads or modelling inaccuracies. The generation of the prismatic elements is described and techniques to interface them to the other elements used in a hybrid approach discussed.
- OSTI ID:
- 416576
- Report Number(s):
- CONF-960489--
- Country of Publication:
- United States
- Language:
- English
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