TY  - EJOU
AU  - Debabeche, Bouthaina 
AU  - Cherhabil, Sonia 

TI  - Study of a Hydraulic Jump in an Asymmetric Trapezoidal Channel with Different Sluice Gates
T2  - Fluid Dynamics \& Materials Processing

PY  - 2024
VL  - 20
IS  - 7
SN  - 1555-2578

AB  - 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.
KW  - Asymmetric trapezoidal channel; characteristic lengths; efficiency; Froude; hydraulic jump; sequent depths; sluice gate

DO  - 10.32604/fdmp.2024.047403