الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
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Abstract
Hydraulic structures constructed across open channels usually have control gates of different features the dimensions width and height of yjode gates in addition to the presence of sillunder the gates and the condition of flow free or submerged affect the characteristics of flow through gate openings the present study aims at investigating the effect of changing gate width or gate opening height on the characteristics of submerged flow the study focuses on the variation of the coefficient of discharge and Froude number under the gate with respect to other variables.