Abstract
A hydraulic jump mainly serves as an energy dissipator downstream of hydraulic structures. For analysis and design of a hydraulic jump on a corrugated bed, the specific energy curve was used: the maximum possible amount of energy dissipation of the hydraulic jump, the minimum possible value of sequent depth for the hydraulic jump, and efficiency of energy dissipation of a smooth hydraulic jump are theoretically related to the inflow Froude number. A wide range of existing experimental data from hydraulic jumps on smooth and corrugated beds was also used. Results of this study indicate that the energy dissipation of a hydraulic jump on a corrugated bed is mainly influenced by horizontal distance from the sluice gate section to the start point of the corrugated bed. To reach the maximum value of energy dissipation (i.e., minimum value of subcritical sequent depth) and the minimum value of jump length, the corrugated bed should start from the gate opening.
Highlights
A hydraulic jump mainly serves as an energy dissipator downstream of hydraulic structures
It can be concluded from these studies of hydraulic jumps on corrugated beds that if jumps were located on corrugated beds, there would be significant reductions in the required tailwater depth and jump length
Based on the specific energy curve (Fig. 2), when the sequent depth of the hydraulic jump is equal to critical depth yc, the maximum possible amount of energy dissipation and the minimum possible value of sequent depth will be achieved
Summary
Influences of corrugation shape (triangular, trapezoidal, rectangular and sinusoidal), relative wave steepness t/s and roughness height t/y1 on hydraulic parameters of created jumps on corrugated beds have been studied by Ead and Rajaratnam (2002), Tokyay (2005), Yadav et al (2007), Abbaspour et al (2009a), Elsebaie and Shabayek (2010) and Samadi-Boroujeni et al (2013), while influence of xc on jump properties has not yet been studied It can be concluded from these studies of hydraulic jumps on corrugated beds that if jumps were located on corrugated beds, there would be significant reductions in the required tailwater depth and jump length. Experimental data are analysed by using the specific energy curve
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
