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Effect of sediment deposition upstream of the New Ibrahimia Head Regulator on its flow characteristics

机译：新型Ibrahimia Head调节器上游的沉积物沉积对其流量特性的影响

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The New Ibrahimia Head Regulator (NIHR) is equipped with double leaf gates and the flow is planned to be passing over these gates. Sediment deposition is likely to occur upstream of the gates due to the reduction in the flow velocity in the zone of back water curve. This research aims at studying the effect of sedimentation on the flow characteristics of the NIHR. Physical modeling and regression analysis were employed to conduct this research. The sedimentation depth was taken as 25%, 50%, 75%, and 100% of the gate height. A length of 10%, 20%, 30%, 40%, and 50% of the distance between the existing and the New Ibrahimia Head Regulator was employed. The discharge coefficient increases with the increase of the sedimentation. A new stage–discharge relationship was developed in case of sediment and no sediment. A larger physical model is recommended to study the effect of upstream sediment on the downstream hydraulic jump.
机译：新型依布拉希米亚头部调节器（NIHR）配备有双叶闸门，并且流量计划通过这些闸门。由于回水曲线区域中流速的降低，沉积物沉积可能会在闸门的上游发生。本研究旨在研究沉降对NIHR流动特性的影响。物理建模和回归分析被用来进行这项研究。沉积深度取为闸门高度的25％，50％，75％和100％。使用现有和新Ibrahimia头部调节器之间距离的10％，20％，30％，40％和50％的长度。流量系数随沉降的增加而增加。在没有沉积物的情况下，建立了新的阶段-排放关系。建议使用更大的物理模型来研究上游沉积物对下游水力跃迁的影响。

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