Experimental Studies of flow from Flap Gate in circular open channel at free flow condition

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Mahmoudi Babak; FARHOUDI JAVAD

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Paper Information

Journal: Iranian Journal of Soil and Water Research Year:2018 | Volume:49 | Issue:1 Page(s): 159-170

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Title

Experimental Studies of flow from Flap Gate in circular open channel at free flow condition

Author(s)

Mahmoudi Babak | FARHOUDI JAVAD | Issue Writer Certificate

Keywords

discharge measurementQ1

Circular flap gateQ1

Quadratic flap gateQ2

Circular channelQ2

Abstract

Present research covers the results of a theoretical and experimental investigation on a circular and Quadratic flap gate, which installed at the exit of a Circular channel. This study would employ an experimental program in a horizontal channel of circular cross section of 200 and 300 mm diameters, equipped with either a circular or Quadratic flap gate to explore the basic parameters affecting the flow discharge estimation of these devices. In this study, of three ways such of the first form Stage-Discharge technique, incomplete self-similarity theory and the second form Stage-Discharge technique have been used for estimating the discharge for circular and Quadratic flap gate under free flow conditions. The research took the advantages the main difficulties during the experiments were the vibration of the gate as well as accurate measurement of gate opening. The use of second form Stage-Discharge technique would overcome such weaknesses. The most accurate of these methods is incomplete self-similarity theory. In this theory, mean absolute relative error for Circular flap gate is equal to 3. 34% and for 4. 1% for Quadratic flap gate.

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APA: Copy

Mahmoudi, Babak, & FARHOUDI, JAVAD. (2018). Experimental Studies of flow from Flap Gate in circular open channel at free flow condition. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 49(1 ), 159-170. SID. https://sid.ir/paper/225833/en

Vancouver: Copy

Mahmoudi Babak, FARHOUDI JAVAD. Experimental Studies of flow from Flap Gate in circular open channel at free flow condition. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2018;49(1 ):159-170. Available from: https://sid.ir/paper/225833/en

IEEE: Copy

Babak Mahmoudi, and JAVAD FARHOUDI, “Experimental Studies of flow from Flap Gate in circular open channel at free flow condition,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 49, no. 1 , pp. 159–170, 2018, [Online]. Available: https://sid.ir/paper/225833/en

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