Experimental and Numerical Investigation of the Effect of Transition Length on Energy Losses in Gradual Transitions Open Channels Under Subcritical Flow

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ASNAASHARI A.; AKHTARI A.A.; DEHGHANI A.A.; BONAKDARI H.

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Journal Paper

Paper Information

Journal: Journal of Irrigation Sciences and Engineering Year:2018 | Volume:41 | Issue:2 Page(s): 45-59

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Title

Experimental and Numerical Investigation of the Effect of Transition Length on Energy Losses in Gradual Transitions Open Channels Under Subcritical Flow

Author(s)

ASNAASHARI A. | AKHTARI A.A. | DEHGHANI A.A. | BONAKDARI H. | Issue Writer Certificate

Keywords

Expansive Gradual TransitionQ1

Flow PatternQ1

Energy LossesQ1

Flow Separation ZonesQ1

Bed Shear StressQ1

Fluent ModelQ1

Abstract

'Transition' is a short hydraulic structure used to change the cross-sectional shape or flow shape. Transitions are commonly used both in the open-channels and natural waterways. The task of a transition is to connect a narrow channel at the upstream to a wider downstream channel or viceversa. This, creates a disturbance region of turbulent flow causing Energy Losses. In general, the structure of a transition prevents the formation of wave and other turbulencies. In this case, the energy loss, due to the change in the amount of the momentum, will be minimized...

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APA: Copy

ASNAASHARI, A., AKHTARI, A.A., DEHGHANI, A.A., & BONAKDARI, H.. (2018). Experimental and Numerical Investigation of the Effect of Transition Length on Energy Losses in Gradual Transitions Open Channels Under Subcritical Flow. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 41(2 ), 45-59. SID. https://sid.ir/paper/217216/en

Vancouver: Copy

ASNAASHARI A., AKHTARI A.A., DEHGHANI A.A., BONAKDARI H.. Experimental and Numerical Investigation of the Effect of Transition Length on Energy Losses in Gradual Transitions Open Channels Under Subcritical Flow. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2018;41(2 ):45-59. Available from: https://sid.ir/paper/217216/en

IEEE: Copy

A. ASNAASHARI, A.A. AKHTARI, A.A. DEHGHANI, and H. BONAKDARI, “Experimental and Numerical Investigation of the Effect of Transition Length on Energy Losses in Gradual Transitions Open Channels Under Subcritical Flow,” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 41, no. 2 , pp. 45–59, 2018, [Online]. Available: https://sid.ir/paper/217216/en

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