EXPERIMENTAL COMPARISON OF ENERGY DISSIPATION ON DROP STRUCTURES

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MORADI SABZ KOOHI A.; KASHEFIPOUR S.S.M.; BINA M.

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Journal: Journal of Water and Soil Science Year:2011 | Volume:15 | Issue:56 Page(s): 209-221

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Information Journal Paper

Title

EXPERIMENTAL COMPARISON OF ENERGY DISSIPATION ON DROP STRUCTURES

Author(s)

MORADI SABZ KOOHI A. | KASHEFIPOUR S.S.M. | BINA M. | Issue Writer Certificate

Keywords

HYDRAULIC STRUCTURESQ2

ENERGY DISSIPATIONQ1

DROP STRUCTUREQ3

Abstract

Drops are the most important and common HYDRAULIC STRUCTURES used as energy dissipators in irrigation networks and erodible waterways. Dissipation of energy occurs in two different ways. One portion belongs to the geometric form of the structure (briefly called loss due to structure), whereas the other occurs due to happening of hydraulic jump downstream of the structure. The dimensions of DROP STRUCTURE and downstream stilling basin can be optimized if geometric and hydraulic characteristics are recognized properly. In this research, the effects of drop geometry and hydraulic characteristics on the loss due to structure were investigated. At first, the effective dimensionless parameters were specified. 14 physical models of more common drops including straight, inclined and stepped drops were then built in 2 heights of 51.5 & 25.5 centimeters and 2 bed slopes of 26.6 & 33.7 degrees. The number of steps in stepped models was chosen equal to 3 and 7. With establishment of 90 flow rate, the energy losses were compared. The results showed that in the range of variable parameters, the straight drop has the maximum amount of ENERGY DISSIPATION.

Cites

FLOW PATTERN AND ENERGY DISSIPATION IN STEPPED SPILLWAYS WITH NON- UNIFORM STEP HEIGHT USING THE ANSYS CFX SOFTWARE

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APA: Copy

MORADI SABZ KOOHI, A., KASHEFIPOUR, S.S.M., & BINA, M.. (2011). EXPERIMENTAL COMPARISON OF ENERGY DISSIPATION ON DROP STRUCTURES. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 15(56), 209-221. SID. https://sid.ir/paper/14947/en

Vancouver: Copy

MORADI SABZ KOOHI A., KASHEFIPOUR S.S.M., BINA M.. EXPERIMENTAL COMPARISON OF ENERGY DISSIPATION ON DROP STRUCTURES. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2011;15(56):209-221. Available from: https://sid.ir/paper/14947/en

IEEE: Copy

A. MORADI SABZ KOOHI, S.S.M. KASHEFIPOUR, and M. BINA, “EXPERIMENTAL COMPARISON OF ENERGY DISSIPATION ON DROP STRUCTURES,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 15, no. 56, pp. 209–221, 2011, [Online]. Available: https://sid.ir/paper/14947/en

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