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Equations for plane, highly curved open channel flows

AutorCastro-Orgaz, Óscar
Palabras claveCurvilinear flow
Flow net
One-dimensional flow
Open channel
Spillway
Weir
Fecha de publicación11-jun-2010
EditorTaylor & Francis
CitaciónJournal of Hydraulic Research 48(3): 405-408 (2010)
ResumenExtended Bernoulli-type energy equations are deduced for highly curved potential flows. The errors from various approximations for potential flow with curved and sloped streamlines are discussed. The impact of the linear streamline curvature distribution is addressed by using the complete, numerical solution of the potential flow equations considering a generalized curvature distribution law. Further, the limitations of the mathematical developments after integration of the governing equations are analysed. If the mathematical limitations and the curvature variation are properly accounted for, the error becomes acceptable for an approximate treatment of highly curved flows. Two approximations for these flows are proposed, and the approach is verified for highly curvilinear flow over a spillway as a test case. © 2010 International Association for Hydro-Environment Engineering and Research.
URIhttp://hdl.handle.net/10261/87770
DOI10.1080/00221686.2010.481847
Identificadoresdoi: 10.1080/00221686.2010.481847
issn: 0022-1686
e-issn: 1814-2079
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