DESIGN OF OPTIMUM CROSS SECTION OF BROAD CRESTED WEIRS AND DETERMINATION OF FLOW DISCHARGE COEFFICIENT

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BEYRAMI M.K.; DEHGHANI A.A.; CHAMANI M.R.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2008 | Volume:15 | Issue:1 Page(s): 138-149

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Title

DESIGN OF OPTIMUM CROSS SECTION OF BROAD CRESTED WEIRS AND DETERMINATION OF FLOW DISCHARGE COEFFICIENT

Author(s)

BEYRAMI M.K. | DEHGHANI A.A. | CHAMANI M.R. | Issue Writer Certificate

Keywords

BROAD-CRESTED WEIRQ2

DISCHARGE COEFFICIENTQ2

OPTIMUM CROSS SECTIONQ2

GENETIC ALGORITHMS (GA)Q2

Abstract

Because of economic and simplicity in construction, trapezoidal broad crested weirs are widely used in water conveyance systems and as flow measuring or water level controlling devices. Due to extensive usage of broad crested weirs, the OPTIMUM CROSS SECTION dimensions can lead to economic design. Looking on literature shows no significant work have been done to investigate the flow characteristics on optimum size of cross section of trapezoidal broad crested weirs on different soils. Thus, in this paper at the first, the optimum size of weir cross section was determined by genetic algorithm approach and then the experimental studies on six optimal models have been carried out and the weir DISCHARGE COEFFICIENTs were obtained. Based on the momentum equation and using experimental results a semi-analytical equation to predict the weir DISCHARGE COEFFICIENT is presented. The results demonstrated capability of intelligent approaches for obtaining the optimum structure and presentation of a convenience method to predict the DISCHARGE COEFFICIENT of trapezoidal BROAD-CRESTED WEIRs. The results also show that the sloping of upstream face of broad crested weirs cause to increasing the DISCHARGE COEFFICIENT by 4 percent.

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APA: Copy

BEYRAMI, M.K., DEHGHANI, A.A., & CHAMANI, M.R.. (2008). DESIGN OF OPTIMUM CROSS SECTION OF BROAD CRESTED WEIRS AND DETERMINATION OF FLOW DISCHARGE COEFFICIENT. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 15(1), 138-149. SID. https://sid.ir/paper/9574/en

Vancouver: Copy

BEYRAMI M.K., DEHGHANI A.A., CHAMANI M.R.. DESIGN OF OPTIMUM CROSS SECTION OF BROAD CRESTED WEIRS AND DETERMINATION OF FLOW DISCHARGE COEFFICIENT. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2008;15(1):138-149. Available from: https://sid.ir/paper/9574/en

IEEE: Copy

M.K. BEYRAMI, A.A. DEHGHANI, and M.R. CHAMANI, “DESIGN OF OPTIMUM CROSS SECTION OF BROAD CRESTED WEIRS AND DETERMINATION OF FLOW DISCHARGE COEFFICIENT,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 15, no. 1, pp. 138–149, 2008, [Online]. Available: https://sid.ir/paper/9574/en

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