Effect of Intake Particle Dimension and Grain Size on Discharge Coefficient in Porous Bottom Intakes Using Physical Modeling

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SHARIATI H.; KHODASHENAS S.R.; ESMAILI K.

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Paper Information

Journal: Journal of Irrigation Sciences and Engineering Year:2018 | Volume:41 | Issue:2 Page(s): 107-117

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Title

Effect of Intake Particle Dimension and Grain Size on Discharge Coefficient in Porous Bottom Intakes Using Physical Modeling

Author(s)

SHARIATI H. | KHODASHENAS S.R. | ESMAILI K. | Issue Writer Certificate

Keywords

Bottom intakeQ2

Mountainous RiverQ2

Porous mediaQ2

spatially varied flowQ1

Abstract

Water intake from the river is done using several methods. Each method has its own features and limitations. In steep mountain rivers with irregular bed, high values of sediment transport and flash floods may prevent the application of gated dams; therefore, the Bottom intakes are often used. In this method, in some part of the river width and length, a trench is created with a proper cross section and water is flowed through this trench into the diversion channel. In order to prevent the coarse particles to enter, top of the trench is covered with bottom rack bars. Corrosion of the bars, clogging, and maintenance are the common problems of bottom racks, which make them unusable in long term. To solve these problems, a new system of Bottom intake with Porous media is introduced. In this method, after trenching in the river bed, materials with appropriate aggregation are dumped in the trench and water intakes from the river through a diversion channel. This means that a portion of flow into the Porous media; then move to the diversion channel. Another portion of the water passes over the Bottom intake and finally drive to the river. Usage of the Porous media has, however, many limitations; but it has some advantages, such as, no suspended solids in the water, respect for the environmental problems, no change in natural morphology of the river, withstanding in different weather conditions, and dealing with the problem of freezing, and corrosion, easy to construct and applicability, affordability and availability of materials...

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APA: Copy

SHARIATI, H., KHODASHENAS, S.R., & ESMAILI, K.. (2018). Effect of Intake Particle Dimension and Grain Size on Discharge Coefficient in Porous Bottom Intakes Using Physical Modeling. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 41(2 ), 107-117. SID. https://sid.ir/paper/217208/en

Vancouver: Copy

SHARIATI H., KHODASHENAS S.R., ESMAILI K.. Effect of Intake Particle Dimension and Grain Size on Discharge Coefficient in Porous Bottom Intakes Using Physical Modeling. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2018;41(2 ):107-117. Available from: https://sid.ir/paper/217208/en

IEEE: Copy

H. SHARIATI, S.R. KHODASHENAS, and K. ESMAILI, “Effect of Intake Particle Dimension and Grain Size on Discharge Coefficient in Porous Bottom Intakes Using Physical Modeling,” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 41, no. 2 , pp. 107–117, 2018, [Online]. Available: https://sid.ir/paper/217208/en

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