Research Article
Nov 1971
Characteristics of Flow over Weirs of Finite Crest Width
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 97, Issue 11
Abstract
The characteristics of flow over weirs of rectangular cross-section with finite crest width depend on h/P, h/B, a characteristic Reynolds number, K/h, and Weber number, wherein h, P, B, and K represent head over the weir, height of the weir, width of the weir in the direction of flow and roughness height for the weir surface, respectively. Parameters h/P and h/B are the most important and a unified understanding of the whole family of weirs can be obtained by considering the variation of these parameters. The variation of discharge coefficient and water-surface profiles with n/P and h/B for weirs with a sharp upstream corner have been determined from the experimental studies. For weirs with a streamlined upstream corner, for values of h/B in the range 0.05 to 0.25, the ratio of the brink depth to the critical depth has been found to be close to 0.715 and the values of the discharge coefficients have been found to be close to the values calculated by Ippen's method.
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Published In
Journal of the Hydraulics Division
Volume 97 • Issue 11 • November 1971
Pages: 1807 - 1816
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Nov 1971
Published online: Feb 3, 2021
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Singamsetti Surya Rao
Asst. Prof., Dept. of Civ. Engrg., Indian Inst. of Technol., Kanpur, U.P., India
Manoj Kumar Shukla
Asst. Engr., Local Self Govt. Engrg. Dept., Lucknow, U.P., India, formerly, Grad. Student, Dept. of Civ. Engrg., Indian Inst. of Technol., Kanpur, U.P., India
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