Clicking "Download" will only navigate to the article page. To access the full article or download the PDF using your institute or individual membership, please click here for detailed instructions.
Author(s): Oscar Castro-Orgaz; Juan Vicente Giráldez; Jose Luis Ayuso
Linked Author(s):
Keywords: Critical flow; one-dimensional flow; open channels; spillways; weirs
Abstract: A new extended Bernoulli energy equation, which is valid for moderately curved channel flows, is presented. From this generalized energy equation, a higher order critical flow condition valid for curved streamline flow was developed. As a practical application, the flow over a circular-crested weir was studied. The proposed new critical flow theory improves the results of a previous lower order theory up to a dimensionless specific energy of 2, thus obtaining accurate results in situations in which the velocity is non-uniform, the pressure non-hydrostatic, and the conventional critical flow theory not valid.
DOI: https://doi.org/10.1080/00221686.2008.9521931
Year: 2008