Research Article
Nov 1976
Characteristics of Proportional Weirs
Publication: Journal of the Hydraulics Division
Volume 102, Issue 11
Abstract
A theorem termed the Geometrical Continuity Theorem is enunciated and proven. This theorem throws light on the aspects of the continuity of the proportional portion with the base weir portion. These two portions constitute the profile of a proportional weir. A weir of this type with circular bottom is designed. The theorem is used to establish the continuity at the junction of the proportional and the base weir portions of this weir. The coordinates of the weir profile are obtained by numerical methods and are furnished in tabular form for ready use by designers. The discharge passing through the weir is a linear function of the head. The verification of the assumed linear discharge-head relation is furnished for one of the three weirs with which experiments were conducted. The coefficient of discharge for this typical weir is found to be a constant with a value of 0.59.
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Published In
Journal of the Hydraulics Division
Volume 102 • Issue 11 • November 1976
Pages: 1677 - 1692
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Nov 1976
Published online: Feb 3, 2021
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Duraiswamy Chandrasekaran
Asst. Prof., Soil and Water Conservation Dept., Tamil Nadu Agr. Univ., Coimbatore, India
Duraiswamy Seshagiri Rao Lakshmana Rao
Prof., Dept. of Civ. Engrg., Indian Inst. of Sci., Bangalore, India
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