Premium
Calculation of compressible flows about complex moving geometries using a three‐dimensional Cartesian cut cell method
Author(s) -
Yang G.,
Causon D. M.,
Ingram D. M.
Publication year - 2000
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 - 10.1002/1097-0363(20000830)33:8<1121::aid-fld45>3.0.co;2-h
Subject(s) - cartesian coordinate system , solver , compressible flow , compressibility , flow (mathematics) , geometry , mathematics , finite volume method , representation (politics) , mathematical analysis , mechanics , physics , mathematical optimization , politics , political science , law
A three‐dimensional Cartesian cut cell method is described for modelling compressible flows around complex geometries, which may be either static or in relative motion. A background Cartesian mesh is generated and any solid bodies cut out of it. Accurate representation of the geometry is achieved by employing different types of cut cell. A modified finite volume solver is used to deal with boundaries that are moving with respect to the stationary background mesh. The current flow solver is an unsplit MUSCL–Hancock method of the Godunov type, which is implemented in conjunction with a cell‐merging technique to maintain numerical stability in the presence of arbitrarily small cut cells and to retain strict conservation at moving boundaries. The method is applied to some steady and unsteady compressible flows involving both static and moving bodies in three dimensions. Copyright © 2000 John Wiley & Sons, Ltd.