THEORETICAL AND EXPERIMENTALSTUDY OF GRADUALLY DIVERGING HYDRAULIC JUMP IN TRAPEZOIDALSECTIONS

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OMID M.H.; ESMAEILI VARAKI M.

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Paper Information

Journal: Journal of Water and Soil Science Year:2005 | Volume:9 | Issue:2 Page(s): 30-38

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Title

THEORETICAL AND EXPERIMENTALSTUDY OF GRADUALLY DIVERGING HYDRAULIC JUMP IN TRAPEZOIDALSECTIONS

Author(s)

OMID M.H. | ESMAEILI VARAKI M. | Issue Writer Certificate

Keywords

HYDRAULIC JUMPQ2

STILLING BASINQ2

DIVERGING HYDRAULIC JUMPQ3

TRAPEZOIDAL STILLING BASIN.Q3

Abstract

Toreducetheconstructioncostsofstilling basinsofhydraulic~umptype is sometimes,novelgeometriesaresometimes usedto adoptthe basinto the upstreamand downstreamsectionswithout any transition structures.Otherwise,any changesin thegeometryofthe basinwould causechangesin theconditionsandcharacteristicsofthe hydraulicjump. In this study,the effectsof variationin boththe sideslopesandthe divergingangleof a graduallyexpandingstillingbasin with trapezoidal section on the jump condition were experimentally investigated. The experimental tests were conductedin a speciallydesignedmodelfora widerangeof sideslopesandlongitudinaldivergencesof the basinwalls. The important parameters of the jump, such as the length, sequent depth and the rate of energy loss were computed and compared to those in the normal jumps. Tests were conducted for three different side slopes (0.5: 1, I: 1, 1.5:1) and four diverging angle (3", 5", 7; 9") with the straight jump in the rectangular section and in the wide scope of decsent numbers (trom3 to 9). The results indicate that any decrease in the side wall slQPesfor a particular angle of divergence would cause a reduction in the sequent depth and an increase in the jump length and energy loss compared to the rectangular section on the same angle of divergence. It is also found that the longitudinal divergence of the side walls for a particular side slope will increase the stability of the jump within the STILLING BASIN. It will also cause a reduction in the sequent depth and the jump length as well as an increase in energy loss of the jump, when compared to the straight jumps in either rectangular or trapezoidal sections.

Cites

THEORETICAL AND EXPERIMENTAL INVESTIGATION OF DIVERGING HYDRAULIC JUMP ON ADVERSE SLOPE

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APA: Copy

OMID, M.H., & ESMAEILI VARAKI, M.. (2005). THEORETICAL AND EXPERIMENTALSTUDY OF GRADUALLY DIVERGING HYDRAULIC JUMP IN TRAPEZOIDALSECTIONS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 9(2), 30-38. SID. https://sid.ir/paper/365145/en

Vancouver: Copy

OMID M.H., ESMAEILI VARAKI M.. THEORETICAL AND EXPERIMENTALSTUDY OF GRADUALLY DIVERGING HYDRAULIC JUMP IN TRAPEZOIDALSECTIONS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2005;9(2):30-38. Available from: https://sid.ir/paper/365145/en

IEEE: Copy

M.H. OMID, and M. ESMAEILI VARAKI, “THEORETICAL AND EXPERIMENTALSTUDY OF GRADUALLY DIVERGING HYDRAULIC JUMP IN TRAPEZOIDALSECTIONS,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 9, no. 2, pp. 30–38, 2005, [Online]. Available: https://sid.ir/paper/365145/en

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