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Absorbing boundary technique for open channel flows

✍ Scribed by Scott A. Yost; Prasada Rao; Russell M. Brown

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 162 KB
Volume: 33
Category: Article
ISSN: 0271-2091
DOI: 10.1002/1097-0363(20000715)33:5<641::aid-fld21>3.0.co;2-y

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✦ Synopsis

An absorbing boundary condition is formulated and applied to the one-dimensional open channel flow equations in conjunction with an explicit MacCormack scheme. The physical flow domain has been truncated by introducing an artificial pseudo-boundary. By using an appropriate boundary condition on a truncated domain, it is shown that, for flow containing shocks, the solution can be accelerated to its stationary profile with no loss of accuracy.

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