Sloping Crest Crump Weir
Publication: Journal of Irrigation and Drainage Engineering
Volume 115, Issue 2
Abstract
A hydraulic model study of an existing sloping crest Crump weir is described. Two models of scales 1:10 and 1:3 were tested. At relatively large heads, the structure behaves as one half of a flat‐V Crump weir with the same transverse crest slope. At lower heads, the flow cross section becomes strongly nonsymmetrical with a consequent significant decrease in the value of the discharge coefficient. The critical head at which departure from a constant discharge coefficient commences is sensitive to the extent of upstream sedimentation in the channel. The sloping crest Crump weir should not be used for flow measurement in a straight channel without an associated model study or an extensive field calibration.
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References
1.
Ackers, P., et al. (1978). Weirs and flumes for flow measurement. John Wiley & Sons, Ltd., Chichester, U.K.
2.
Bonham, A. J. (1972). “Sloping line crest gauging weirs in graded rivers.” Civ. Engrg. Trans., The Inst. of Engrs., Australia, CE14(2), 142–146.
3.
Crump, E. S. (1952). “A new method of gauging stream flow with little afflux by means of a submerged weir of triangular profile.” Proc. Inst. of Civ. Engrs., 1(1), 223–242.
4.
Henderson, F. M. (1966). Open channel flow. The Macmillan Co., New York, N.Y.
5.
White, W. R. (1966). “The flat‐V weir.” HRS Report No. INT 56, Wallingford, U.K.
6.
White, W. R. (1968). “The flat‐V triangular profile weir with 1:2 upstream and downstream slopes.” HRS Report No. INT 66, Wallingford, U.K.
7.
White, W. R. (1970). “The Crump profile flat‐V weir.” HRS Report No. EX473, Wallingford, U.K.
8.
White, W. R. (1971). “The design and calibration of flat‐V weirs.” HRS Report No. INT 88, Wallingford, U.K.
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 115 • Issue 2 • April 1989
Pages: 231 - 238
Copyright
Copyright © 1989 ASCE.
History
Published online: Apr 1, 1989
Published in print: Apr 1989
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