Study of a Hydraulic Jump in an Asymmetric Trapezoidal Channel with Different Sluice Gates  

作　　者：Bouthaina Debabeche Sonia Cherhabil 

机构地区：[1]Research Laboratory in Civil Engineering,Hydraulics,Sustainable Development and Environment(LARGHYDE),University of Biskra,Biskra,7000,Algeria [2]Faculty of Sciences Applied Sciences,Liege University,Liege,4000,Belgium [3]Underground and Surface Hydraulics Research Laboratory(LARHYSS),Biskra,7000,Algeria

出　　处：《Fluid Dynamics & Materials Processing》2024年第7期1499-1516,共18页流体力学与材料加工（英文）

摘　　要：In this study,the main properties of the hydraulic jump in an asymmetric trapezoidal flume are analyzed experimentally,including the so-called sequent depths,characteristic lengths,and efficiency.In particular,an asymmetric trapezoidal flume with a length of 7 m and a width of 0.304 m is considered,with the bottom of the flume transversely inclined at an angle of m=0.296 and vertical lateral sides.The corresponding inflow Froude number is allowed to range in the interval(1.40<F1<6.11).The properties of this jump are compared to those of hydraulic jumps in channels with other types of cross-sections.A relationship for calculating hydraulic jump efficiency is proposed for the considered flume.For F1>5,the hydraulic jump is found to be more effective than that occurring in triangular and symmetric trapezoidal channels.Also,when■mes>8 and■>5,the hydraulic jump in the asymmetrical trapezoidal channel downstream of a parallelogram sluice gate is completely formed as opposed to the situation where a triangular sluice is considered.

关 键 词：Asymmetric trapezoidal channel characteristic lengths EFFICIENCY Froude hydraulic jump sequent depths sluice gate 

分 类 号：P51[天文地球—地质学]