A Solution Adaptive Technique Using Tetrahedral Unstructured Grids

A Solution Adaptive Technique Using Tetrahedral Unstructured Grids

An adaptive unstructured grid refinement technique has been developed and successfully applied to several three dimensional inviscid flow test cases. The method is based on a combination of surface mesh subdivision and local remeshing of the volume grid. Simple functions of flow quantities are emplo...

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Bibliographische Detailangaben
1. Verfasser: Pirzadeh, Shahyar Z
Format: Report
Sprache:eng
Schlagworte:
ADAPTIVE SYSTEMS
FLOW FIELDS
GRID ADAPTATION
GRIDS
REMESHING
Statistics and Probability
UNSTRUCTURED GRIDS
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Zusammenfassung:An adaptive unstructured grid refinement technique has been developed and successfully applied to several three dimensional inviscid flow test cases. The method is based on a combination of surface mesh subdivision and local remeshing of the volume grid. Simple functions of flow quantities are employed to detect dominant features of the flowfield. The method is designed for modular coupling with various error/feature analyzers and flow solvers. Several steady-state, inviscid flow test cases are presented to demonstrate the applicability of the method for solving practical three-dimensional problems. In all cases, accurate solutions featuring complex, nonlinear flow phenomena such as shock waves and vortices have been generated automatically and efficiently. See also ADM002333. International Congress of Aeronautical Sciences (ICAS) (22nd) Held in Harrogate, United Kingdom on August 27-September 1, 2000. U.S. Government or Federal Purpose Rights License, The original document contains color images.