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A mixed pseudospectral/finite difference method for the axisymmetric flow in a heated, rotating spherical shellFor a Spacelab flight, a model experiment of the earth's atmospheric circulation has been proposed. This experiment is known as the Atmospheric General Circulation Experiment (AGCE). In the experiment concentric spheres will rotate as a solid body, while a dielectric fluid is confined in a portion of the gap between the spheres. A zero gravity environment will be required in the context of the simulation of the gravitational body force on the atmosphere. The present study is concerned with the development of pseudospectral/finite difference (PS/FD) model and its subsequent application to physical cases relevant to the AGCE. The model is based on a hybrid scheme involving a pseudospectral latitudinal formulation, and finite difference radial and time discretization. The advantages of the use of the hybrid PS/FD method compared to a pure second-order accurate finite difference (FD) method are discussed, taking into account the higher accuracy and efficiency of the PS/FD method.
Document ID
19860042273
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Macaraeg, M. G.
(NASA Langley Research Center Hampton, VA; Tennessee, University, Tullahoma, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1986
Publication Information
Publication: Journal of Computational Physics
Volume: 62
ISSN: 0021-9991
Subject Category
Meteorology And Climatology
Accession Number
86A27011
Distribution Limits
Public
Copyright
Other

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