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contributor authorXinya Ying
contributor authorAbdul A. Khan
contributor authorSam S. Y. Wang
date accessioned2017-05-08T20:44:42Z
date available2017-05-08T20:44:42Z
date copyrightOctober 2004
date issued2004
identifier other%28asce%290733-9429%282004%29130%3A10%28977%29.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/25644
description abstractAn upwind conservative scheme with a weighted average water-surface-gradient approach is proposed to compute one-dimensional open channel flows. The numerical scheme is based on the control volume method. The intercell flux is computed by the one-sided upwind method. The water surface gradient is evaluated by the weighted average of both upwind and downwind gradients. The scheme is tested with various examples, including dam-break problems in channels with rectangular and triangular cross-sections, hydraulic jump, partial dam-break problem, overtopping flow, a steady flow over bump with hydraulic jump, and a dam-break flood case in a natural river valley. Comparisons between numerical and exact solutions or experimental data demonstrated that the proposed scheme is capable of accurately reproducing various open channel flows, including subcritical, supercritical, and transcritical flows. The scheme is inherently robust, stable, and monotone. The scheme does not require any special treatment, such as artificial viscosity or front tracking technique, to capture steep gradients or discontinuities in the solution.
publisherAmerican Society of Civil Engineers
titleUpwind Conservative Scheme for the Saint Venant Equations
typeJournal Paper
journal volume130
journal issue10
journal titleJournal of Hydraulic Engineering
identifier doi10.1061/(ASCE)0733-9429(2004)130:10(977)
treeJournal of Hydraulic Engineering:;2004:;Volume ( 130 ):;issue: 010
contenttypeFulltext


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