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

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NOZARI H.; OMID M.H.; KOUCHAKZADEH S.

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Paper Information

Journal: JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH Year:2004 | Volume:5 | Issue:18 Page(s): 91-102

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Information Journal Paper

Title

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

Author(s)

NOZARI H. | OMID M.H. | KOUCHAKZADEH S. | Issue Writer Certificate

Keywords

HYDRAULIC JUMPQ4

SAND WAVEQ4

SEDIMENT LOADQ4

STILLING BASINQ4

Abstract

An experimental investigation was made to study the effects of bed10ad transport on HYDRAULIC JUMP characteristics in a rectangular sti1ling basin. Experiments were performed in a channel of glass sides and smooth bed, and of rectangular cross-section 500 mm wide and 9 m long. The uniform sand of 4.05 mm with different concentration was used in the experiments for a wide range of HYDRAULIC JUMP by Froude number ranging from 3 to 9. The results show that the sediment laden inflow has no effect on the main characteristics of the jump namely sequent depth, energy loss and length of jump. However, the incoming sediments 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. The position of the front of this dune-wise SAND WAVE is almost unvarying in a certain flow and sediment conditions but the ending step moves downstream making a growing SAND WAVE with a constant speed which is related to the inflow sediment rate. This SAND WAVE performs a control section similar to an end sill in a sti11ingbasin and keeps the HYDRAULIC JUMP position at the beginning of the basin. The thickness of the front of this SAND WAVE is expressed as a function of upstream Froude number. The results presented in this paper are expected to be useful in designing the STILLING BASINs length and bed elevation in the presence of sediment laden inflow.

Cites

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

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APA: Copy

NOZARI, H., OMID, M.H., & KOUCHAKZADEH, S.. (2004). EFFECT OF BED LOAD TRANSPORT ON HYDRAULIC JUMP IN A RECTANGULAR STILLING BASIN. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 5(18), 91-102. SID. https://sid.ir/paper/28213/en

Vancouver: Copy

NOZARI H., OMID M.H., KOUCHAKZADEH S.. EFFECT OF BED LOAD TRANSPORT ON HYDRAULIC JUMP IN A RECTANGULAR STILLING BASIN. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH[Internet]. 2004;5(18):91-102. Available from: https://sid.ir/paper/28213/en

IEEE: Copy

H. NOZARI, M.H. OMID, and S. KOUCHAKZADEH, “EFFECT OF BED LOAD TRANSPORT ON HYDRAULIC JUMP IN A RECTANGULAR STILLING BASIN,” JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, vol. 5, no. 18, pp. 91–102, 2004, [Online]. Available: https://sid.ir/paper/28213/en

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