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A Chebyshev spectral collocation method using a staggered grid for the stability of cylindrical flowsA staggered spectral collocation method for the stability of cylindrical flows is developed. In this method the pressure is evaluated at different nodal points than the three velocity components. These modified nodal points do not include the two boundary nodes; therefore the need for the two artificial pressure boundary conditions employed by Khorrami et al. is eliminated. It is shown that the method produces very accurate results and has a better convergence rate than the spectral tau formulation. However, through extensive convergence tests it was found that elimination of the artificial pressure boundary conditions does not result in any significant change in the convergence behavior of spectral collocation methods.
Document ID
19910055019
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Khorrami, Mehdi R.
(Old Dominion University Norfolk, VA, United States)
Date Acquired
August 15, 2013
Publication Date
May 20, 1991
Publication Information
Publication: International Journal for Numerical Methods in Fluids
Volume: 12
ISSN: 0271-2091
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
91A39642
Funding Number(s)
CONTRACT_GRANT: NAG1-530
Distribution Limits
Public
Copyright
Other

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