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Unstructured and adaptive mesh generation for high Reynolds number viscous flowsA method for generating and adaptively refining a highly stretched unstructured mesh suitable for the computation of high-Reynolds-number viscous flows about arbitrary two-dimensional geometries was developed. The method is based on the Delaunay triangulation of a predetermined set of points and employs a local mapping in order to achieve the high stretching rates required in the boundary-layer and wake regions. The initial mesh-point distribution is determined in a geometry-adaptive manner which clusters points in regions of high curvature and sharp corners. Adaptive mesh refinement is achieved by adding new points in regions of large flow gradients, and locally retriangulating; thus, obviating the need for global mesh regeneration. Initial and adapted meshes about complex multi-element airfoil geometries are shown and compressible flow solutions are computed on these meshes.
Document ID
19910010750
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mavriplis, Dimitri J. (Institute for Computer Applications in Science and Engineering Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1991
Subject Category
Aerodynamics
Report/Patent Number
AD-A234674
NASA-CR-187534
ICASE-91-25
NAS 1.26:187534
Meeting Information
Meeting: International Conference on Numerical Grid Generation Conference
Location: Barcelona
Country: Spain
Start Date: June 3, 1991
End Date: June 7, 1991
Accession Number
91N20063
Funding Number(s)
PROJECT: RTOP 505-90-52-01
CONTRACT_GRANT: NAS1-18605
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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