Application of Weakly Compressible Flow Method to 2-D Open Channel Flows

by Qun Wang, Univ of Minnesota, Minneapolis, United States,
Charles C. S. Song, Univ of Minnesota, Minneapolis, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The depth averaged equations for open channel flows are shown to be similar to that of the weakly compressible flows. The finite volume scheme developed for weakly compressible flows has been used to calculate steady flows in a rectangular channel of constant cross section and a rectangular channel with sudden expansion. The vorticity production at the flow separation point and the vorticity absorption at the channel bed due to shear stress are demonstrated.

Subject Headings: Two-dimensional flow | Open channel flow | Compression | Fluid flow | Shear stress | Finite volume method | Channels (waterway) | Numerical methods

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