Flow over side weirs in rectangular and circular channels is discussed. Numerical models are obtained from energy principles and are solved by a finite difference method. The results are presented in diagrammatic form for practical use. It is shown that rectangular channel side weir procedures cannot be used for obtaining approximate water surface profiles along the side weirs in circular channels.

Side weirs, Circular channel, Rectangular channel, Water surface, Discharge, Flow, Specific energy
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© IWA Publishing 1989
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