A numerical scheme for two-dimensional, open channel flows with non-rectangular geometries
Glaister, P. (1993) A numerical scheme for two-dimensional, open channel flows with non-rectangular geometries. International Journal of Engineering Science, 31 (7). pp. 1003-1011. ISSN 0020-7225
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To link to this article DOI: 10.1016/0020-7225(93)90108-7
An algorithm based on flux difference splitting is presented for the solution of two-dimensional, open channel flows. A transformation maps a non-rectangular, physical domain into a rectangular one. The governing equations are then the shallow water equations, including terms of slope and friction, in a generalized coordinate system. A regular mesh on a rectangular computational domain can then be employed. The resulting scheme has good jump capturing properties and the advantage of using boundary/body-fitted meshes. The scheme is applied to a problem of flow in a river whose geometry induces a region of supercritical flow.
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