Research Note; Application of high order one dimensional equation for predicting open channel flow properties with lateral contraction

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DARVISHI ELHAM; Kordestani Tayebeh

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Paper Information

Journal: JOURNAL OF HYDRAULICS Year:2018 | Volume:13 | Issue:3 (133) Page(s): 117-125

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Title

Research Note; Application of high order one dimensional equation for predicting open channel flow properties with lateral contraction

Author(s)

DARVISHI ELHAM | Kordestani Tayebeh | Issue Writer Certificate

Keywords

Rating curveQ1

Boussinesq equationsQ1

lateral contractionQ1

Parshall flumeQ1

Abstract

Canal structures with lateral contraction are commonly used to measure discharge in an open channel. Because of three dimensional nature of the flow, extracting Rating curve for these structures is done by using a physical or three dimensional mathematical model. A considerable amount of time and money is required when utilizing these models. Boussinesq equations, extracted by considering streamline curvature and slope, exhibit high accuracy in predicting hydraulic properties in structures with varying bed level. In this paper, the Boussinesq equations are developed for the lateral contraction in a rectangular channel. The extracted equations are used for obtaining the Rating curve of Parshall flume and predicting water surface profile of Khafagi flume. Comparing experimental data with the results of the developed equations showed the high accuracy of Boussinesq equation to predicting the water surface profile and the Rating curve of structures with contraction and varying bed. The time for solving this one dimensional equations is much less than those of three dimensional model of FLOW3D.

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APA: Copy

DARVISHI, ELHAM, & Kordestani, Tayebeh. (2018). Research Note; Application of high order one dimensional equation for predicting open channel flow properties with lateral contraction. JOURNAL OF HYDRAULICS, 13(3 (133) ), 117-125. SID. https://sid.ir/paper/124207/en

Vancouver: Copy

DARVISHI ELHAM, Kordestani Tayebeh. Research Note; Application of high order one dimensional equation for predicting open channel flow properties with lateral contraction. JOURNAL OF HYDRAULICS[Internet]. 2018;13(3 (133) ):117-125. Available from: https://sid.ir/paper/124207/en

IEEE: Copy

ELHAM DARVISHI, and Tayebeh Kordestani, “Research Note; Application of high order one dimensional equation for predicting open channel flow properties with lateral contraction,” JOURNAL OF HYDRAULICS, vol. 13, no. 3 (133) , pp. 117–125, 2018, [Online]. Available: https://sid.ir/paper/124207/en

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