EXPERIMENTAL STUDY OF SPATIAL DISCHARGE COEFFICIENT IN BROAD CRESTED SIDE WEIR

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AGHA YARI F.; HONAR T.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2008 | Volume:15 | Issue:1 Page(s): 159-167

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Information Journal Paper

Title

EXPERIMENTAL STUDY OF SPATIAL DISCHARGE COEFFICIENT IN BROAD CRESTED SIDE WEIR

Author(s)

AGHA YARI F. | HONAR T. | Issue Writer Certificate

Keywords

SIDE WEIRSQ3

VARIATION OF THE SPATIAL DISCHARGE COEFFICIENTQ3

SPATIALLY VARIED FLOWQ2

Abstract

The side weir is a hydraulic structure which is widely used in irrigation and drainage networks and water treatment plants. The discharge over the side weir is a SPATIALLY VARIED FLOW condition with flow reduction. In this study, the effect height and width of the side weir on the variation of spatial discharge coefficient is investigated in sub-critical flow condition and in a rectangular flume. From the result, it was found that with downstream flow control, the variation of the discharge coefficient along the side weir is a function of the ratio of flow depth over side weir crest at the end of weir to weir length and ratio of distance from the upstream of the weir to weir length. Also, it was found that without downstream flow control, the variation of discharge coefficient is a function of the ratio of weir width to flow depth at the end of the weir, ratio of weir height to flow depth at the upstream of the weir and ratio of distance from the upstream of the weir to flow depth at the end of side weir. Additionally, a statistical model is proposed to estimate the spatial discharge coefficient in sub-critical flow condition. The proposed model is compared with the previously published data and produced reasonable results. There was a good agreement with a relative error of less than ten percent. Finally, the above model enables to estimate relatively accurate results when compared with the overall discharge coefficient models.

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APA: Copy

AGHA YARI, F., & HONAR, T.. (2008). EXPERIMENTAL STUDY OF SPATIAL DISCHARGE COEFFICIENT IN BROAD CRESTED SIDE WEIR. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 15(1), 159-167. SID. https://sid.ir/paper/9592/en

Vancouver: Copy

AGHA YARI F., HONAR T.. EXPERIMENTAL STUDY OF SPATIAL DISCHARGE COEFFICIENT IN BROAD CRESTED SIDE WEIR. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2008;15(1):159-167. Available from: https://sid.ir/paper/9592/en

IEEE: Copy

F. AGHA YARI, and T. HONAR, “EXPERIMENTAL STUDY OF SPATIAL DISCHARGE COEFFICIENT IN BROAD CRESTED SIDE WEIR,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 15, no. 1, pp. 159–167, 2008, [Online]. Available: https://sid.ir/paper/9592/en

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