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A two-step scheme for the advection equation with minimized dissipation and dispersion errorsA two-step advection scheme of the Lax-Wendroff type is derived which has accuracy and phase characteristics similar to that of a third-order scheme. The scheme is exactly third-order accurate in time and space for uniform flow. The new scheme is compared with other currently used methods, and is shown to simulate well the advection of localized disturbances with steep gradients. The scheme is derived for constant flow and generalized to two-dimensional nonuniform flow.
Document ID
19850060031
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Takacs, L. L.
(NASA Goddard Space Flight Center; M/A-COM Sigma Data, Inc. Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1985
Publication Information
Publication: Monthly Weather Review
Volume: 113
ISSN: 0027-0644
Subject Category
Meteorology And Climatology
Accession Number
85A42182
Distribution Limits
Public
Copyright
Other

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