Hydraulic Jumps on Rough Beds

2007 ◽  
Vol 133 (9) ◽  
pp. 989-999 ◽  
Author(s):  
Francesco Giuseppe Carollo ◽  
Vito Ferro ◽  
Vincenzo Pampalone
Keyword(s):  
Hydraulic Jumps ◽  
Rough Beds

scholarly journals Effect of roughness on sequent depth in hydraulic jumps over rough bed

2019 ◽  
Vol 71 (2) ◽  
pp. 105-111
Author(s):  
Arpan Arunrao Deshmukh ◽  
Naveen Sudharsan ◽  
Avinash D Vasudeo ◽  
Aniruddha Dattatraya Ghare
Keyword(s):  
Energy Dissipation ◽  
Kinetic Energy ◽  
Hydraulic Jump ◽  
Open Channel ◽  
Hydraulic Jumps ◽  
Open Channel Flows ◽  
Downstream Side ◽  
Rough Bed ◽  
Sequent Depth ◽  
Rough Beds

Hydraulic jump is an important phenomenon in open channel flows such as rivers and spillways. Hydraulic jump is mainly used for kinetic energy dissipation at the downstream side of a spillway with the assist of baffle blocks. It has been demonstrated that corrugated or rough beds show considerably more energy dissipation than smooth beds. The experimental research evaluating the effect of crushed stones on the hydraulic jump is presented in this paper. Five different-size sets of crushed stones were used. Results show that the effect of rough bed does not increase after a certain height of crushed stone is reached.

scholarly journals Characteristics of hydraulic jumps over rough beds – an experimental study

2013 ◽  
Vol 46 (3) ◽  
pp. 1
Author(s):  
N.G.P.B. Neluwala ◽  
K.T.S. Karunanayake ◽  
K.B.G.M. Sandaruwan ◽  
K.P.P. Pathirana
Keyword(s):  
Experimental Study ◽  
Hydraulic Jumps ◽  
Rough Beds

Velocity Distribution and Attenuation Characteristic in Hydraulic Jumps on Rough Beds

2021 ◽  
Author(s):  
Lei Wang ◽  
Ming-jun Diao
Keyword(s):  
Velocity Distribution ◽  
Hydraulic Jump ◽  
Maximum Velocity ◽  
Hydraulic Jumps ◽  
Attenuation Characteristic ◽  
Jump Length ◽  
Attenuation Rate ◽  
Rough Bed ◽  
Velocity Attenuation ◽  
Rough Beds

This study was conducted to investigate the velocity distribution and attenuation in free jumps on rough beds. Based on the length scale of jump length Lj, the velocity distribution of the free jump on a rough bed can be divided into four parts by three typical sections where are in the position of x=0.4Lj, x=0.8Lj, and x=1.2Lj. It seems that the velocity distribution near section x=0.4Lj is the most uneven. The velocity attenuation rate in the bottom half of the water is larger than that in the top half of the water. The attenuation of the maximum velocity um is mainly done from x=0 to x=0.8Lj. The results show the mixed triangular corrugated floor increases the resistance of hydraulic jump development and is very efficient in energy dissipation.

Dynamic hydraulic jumps in oscillating containers

2007 ◽  
Author(s):  
P. J. Disimile ◽  
J. M. Pyles ◽  
N. Toy
Keyword(s):  
Hydraulic Jumps

A gas entrainment model for hydraulic jumps in near horizontal pipes

2012 ◽  
Vol 43 ◽  
pp. 39-55 ◽  
Author(s):  
R. Skartlien ◽  
J.A. Julshamn ◽  
C.J. Lawrence ◽  
L. Liu
Keyword(s):  
Hydraulic Jumps ◽  
Horizontal Pipes ◽  
Gas Entrainment
Sign in / Sign up

Export Citation Format

Share Document