Research Article
Jul 1979
Channel Flow Computations Using Characteristics
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 105, Issue 7
Abstract
It is shown that the direct formulation of the rectangular grid broken characteristic method can be used without adherence to the Courant condition. When small distance steps are used, it is possible to use time steps with large Courant numbers with relatively little loss of accuracy. Larger distance steps require the restriction of the Courant numbers to smaller values to maintain resonable accuracies. Considerable savings in computation times are now possible as a result. Restriction of the magnitude of the Courant number allowed seems to be needed only from the point of view of accuracy.
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Published In
Journal of the Hydraulics Division
Volume 105 • Issue 7 • July 1979
Pages: 899 - 910
Copyright
© 1979 American Society of Civil Engineers.
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Published in print: Jul 1979
Published online: Feb 3, 2021
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Authors
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Kathirithamby Sivaloganathan
Sr. Lect., Dept. of Civ. Engrg., Lanchester Polytechnic, Coventry, England
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