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Time-accurate Navier-Stokes calculations with multigrid accelerationAn efficient method for calculating unsteady flows is presented, with emphasis on a modified version of the thin-layer Navier-Stokes equations. Fourier stability analysis is used to illustrate the effect of treating the source term implicitly instead of explicity, as well as to illustrate other algorithmic choices. A 2D circular cylinder (with a Reynolds number of 1200 and a Mach number of 0.3) is calculated. The present scheme requires only about 10 percent of the computer time required by global minimum time stepping.
Document ID
19930061094
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Melson, N. D.
(NASA Langley Research Center Hampton, VA, United States)
Sanetrik, Mark D.
(Analytical Sciences and Materials, Inc. Hampton, VA, United States)
Atkins, Harold L.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: AIAA Computational Fluid Dynamics Conference, 11th, Orlando, FL, July 6-9, 1993, Technical Papers. Pt. 2 (A93-44994 18-34)
Publisher: American Institute of Aeronautics and Astronautics
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
93A45091
Distribution Limits
Public
Copyright
Other

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