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A dynamically adaptive multigrid algorithm for the incompressible Navier-Stokes equations: Validation and model problemsAn algorithm is described for the solution of the laminar, incompressible Navier-Stokes equations. The basic algorithm is a multigrid based on a robust, box-based smoothing step. Its most important feature is the incorporation of automatic, dynamic mesh refinement. This algorithm supports generalized simple domains. The program is based on a standard staggered-grid formulation of the Navier-Stokes equations for robustness and efficiency. Special grid transfer operators were introduced at grid interfaces in the multigrid algorithm to ensure discrete mass conservation. Results are presented for three models: the driven-cavity, a backward-facing step, and a sudden expansion/contraction.
Document ID
19910022574
Acquisition Source
Legacy CDMS
Document Type
Preprint (Draft being sent to journal)
Authors
Thompson, C. P. (Bergen Scientific Centre (Norway). IL., United States)
Leaf, G. K. (Argonne National Lab. Hampton, VA, United States)
Vanrosendale, J. (Institute for Computer Applications in Science and Engineering)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Subject Category
Numerical Analysis
Report/Patent Number
NASA-CR-187595
ICASE-91-36
AD-A240141
NAS 1.26:187595
Accession Number
91N31888
Funding Number(s)
CONTRACT_GRANT: NAS1-18605
CONTRACT_GRANT: W-31-109-ENG-38
PROJECT: RTOP 505-90-52-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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