EFFECT OF CONCENTRATION AND GRAIN SIZE OF SEDIMENT LOAD ON HYDRAULIC JUMP AND SEDIMENTATION PATTERN IN THE DOWNSTREAM OF IT

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NOZARI HAMED; OMID M.H.

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Journal: IRANIAN WATER RESEARCH JOURNAL Year:2012 | Volume:6 | Issue:10 Page(s): 0-0

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Title

EFFECT OF CONCENTRATION AND GRAIN SIZE OF SEDIMENT LOAD ON HYDRAULIC JUMP AND SEDIMENTATION PATTERN IN THE DOWNSTREAM OF IT

Author(s)

NOZARI HAMED | OMID M.H. | Issue Writer Certificate

Keywords

STILLING BASIN AND SAND WAVE.Q1

BED LOADQ2

HYDRAULIC JUMPQ2

END SILLQ2

Abstract

In a laboratory study, concentration and formation of sediment load on the HYDRAULIC JUMP was studied. Experiments were performed in a stilling basin of rectangular cross-section 0.5 m wide, 0.6 m height and 3 m long. Uniform sands of 0.6, 1.4, 4.1, and 5.6 mm with different concentrations were used in the experiments for various types of HYDRAULIC JUMP with Froud number ranging from 3 to 9. The results indicate that the sediment size and sediment concentration makes no changes to the incoming super critical flow conditions and therefore, has no effect on the characteristics of the jump (sequent depth, energy loss and length of jump). However, the sediment loads are deposited in the sub critical zone (end of jump) and move downstream as BED LOAD. The motion of the sediment is wave-like with a mild slope at the front followed by a raised bed of nearly uniform thickness terminating into a step. This sand wave performs a control section similar to the END SILL in a stilling basin and keeps the HYDRAULIC JUMP position at the beginning of the basin. The thickness and the position of the front of this sand wave are expressed as a function of upstream Froude number.

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References

EFFECT OF BED LOAD TRANSPORT ON HYDRAULIC JUMP IN A RECTANGULAR STILLING BASIN

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APA: Copy

NOZARI, HAMED, & OMID, M.H.. (2012). EFFECT OF CONCENTRATION AND GRAIN SIZE OF SEDIMENT LOAD ON HYDRAULIC JUMP AND SEDIMENTATION PATTERN IN THE DOWNSTREAM OF IT. IRANIAN WATER RESEARCH JOURNAL, 6(10), 0-0. SID. https://sid.ir/paper/393279/en

Vancouver: Copy

NOZARI HAMED, OMID M.H.. EFFECT OF CONCENTRATION AND GRAIN SIZE OF SEDIMENT LOAD ON HYDRAULIC JUMP AND SEDIMENTATION PATTERN IN THE DOWNSTREAM OF IT. IRANIAN WATER RESEARCH JOURNAL[Internet]. 2012;6(10):0-0. Available from: https://sid.ir/paper/393279/en

IEEE: Copy

HAMED NOZARI, and M.H. OMID, “EFFECT OF CONCENTRATION AND GRAIN SIZE OF SEDIMENT LOAD ON HYDRAULIC JUMP AND SEDIMENTATION PATTERN IN THE DOWNSTREAM OF IT,” IRANIAN WATER RESEARCH JOURNAL, vol. 6, no. 10, pp. 0–0, 2012, [Online]. Available: https://sid.ir/paper/393279/en

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