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A modified Dodge algorithm for the parabolized Navier-Stokes equations and compressible duct flowsA revised version of Dodge's split-velocity method for numerical calculation of compressible duct flow was developed. The revision incorporates balancing of mass flow rates on each marching step in order to maintain front-to-back continuity during the calculation. The (checkerboard) zebra algorithm is applied to solution of the three dimensional continuity equation in conservative form. A second-order A-stable linear multistep method is employed in effecting a marching solution of the parabolized momentum equations. A checkerboard iteration is used to solve the resulting implicit nonlinear systems of finite-difference equations which govern stepwise transition. Qualitative agreement with analytical predictions and experimental results was obtained for some flows with well-known solutions. Previously announced in STAR as N82-16363
Document ID
19840028388
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cooke, C. H.
(Old Dominion University Norfolk, VA, United States)
Dwoyer, D. M.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1983
Publication Information
Publication: International Journal for Numerical Methods in Fluids
Volume: 3
ISSN: 0271-2091
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
84A11175
Distribution Limits
Public
Copyright
Other

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