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Simulating three‐dimensional aeronautical flows on mixed block‐structured/semi‐structured/unstructured meshes
Author(s) -
Shaw J. A.,
Peace A. J.
Publication year - 2002
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.284
Subject(s) - polygon mesh , computational fluid dynamics , mesh generation , computer science , computational science , unstructured grid , flow (mathematics) , block (permutation group theory) , process (computing) , mathematical optimization , algorithm , aerospace engineering , mathematics , geometry , computer graphics (images) , engineering , finite element method , structural engineering , operating system
The design requirements of a computational fluid dynamics (CFD) method for modelling high Reynolds number flows over complete aircraft are reviewed. It is found that the specifications are unlikely to be met by an approach based on the sole use of either structured or unstructured grids. Instead, it is proposed that a hybrid combination of these grids is appropriate. Techniques for developing such meshes are given and the process of establishing the data structure defining the meshes described. Details of a flow algorithm which operates on a hybrid mesh are presented. A description is given of the suitability and generation of hybrid grids for a number of examples, and results from flow simulations shown. Finally, issues still to be addressed in the practical use of these meshes are discussed. Copyright © 2002 John Wiley & Sons, Ltd.