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Solution of axisymmetric and two-dimensional inviscid flow over blunt bodies by the method of linesComparisons with experimental data and the results of other computational methods demonstrated that very accurate solutions can be obtained by using relatively few lines with the method of lines approach. This method is semidiscrete and has relatively low core storage requirements as compared with fully discrete methods since very little data were stored across the shock layer. This feature is very attractive for three dimensional problems because it enables computer storage requirements to be reduced by approximately an order of magnitude. In the present study it was found that nine lines was a practical upper limit for two dimensional and axisymmetric problems. This condition limits application of the method to smooth body geometries where relatively few lines would be adequate to describe changes in the flow variables around the body. Extension of the method to three dimensions was conceptually straightforward; however, three dimensional applications would also be limited to smooth body geometries although not necessarily to total of nine lines.
Document ID
19780014389
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Hamilton, H. H., II (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1978
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NASA-TP-1154
L-11983
Accession Number
78N22332
Funding Number(s)
PROJECT: RTOP 506-26-13-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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