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Rotating incompressible flow with a pressure Neumann condition
Author(s) -
Claeyssen Julio R.,
Asenjo Elba Bravo,
Rubio Obidio
Publication year - 2005
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.1015
Subject(s) - discretization , compressibility , reynolds number , pressure correction method , mathematics , mechanics , incompressible flow , rotation (mathematics) , computational fluid dynamics , flow (mathematics) , internal flow , duct (anatomy) , geometry , classical mechanics , mathematical analysis , physics , turbulence , medicine , pathology
This work considers the internal flow of an incompressible viscous fluid contained in a rectangular duct subject to a rotation. A direct velocity–pressure algorithm in primitive variables with a Neumann condition for the pressure is employed. The spatial discretization is made with finite central differences on a staggered grid. The pressure and velocity fields are directly updated without any iteration. Numerical simulations with several Reynolds numbers and rotation rates were performed for ducts of aspect ratios 2:1 and 8:1. Copyright © 2005 John Wiley & Sons, Ltd.