Submerged Hydraulic Jump Remediation at Low-Head Dams: Partial Width Deflector Design

2018 ◽  
Vol 144 (12) ◽  
pp. 04018074
Author(s):  
Ronald F. McGhin ◽  
Rollin H. Hotchkiss ◽  
Ed Kern
Keyword(s):  
Hydraulic Jump ◽  
Partial Width ◽  
Low Head ◽  
Submerged Hydraulic Jump

Closure to “Submerged Hydraulic Jump”

1966 ◽  
Vol 92 (4) ◽  
pp. 154-156
Author(s):  
Nallamuthu Rajaratnam
Keyword(s):  
Hydraulic Jump ◽  
Submerged Hydraulic Jump

Mean Flow in a Submerged Hydraulic Jump with Baffle Blocks

2014 ◽  
Vol 140 (5) ◽  
pp. 04014020 ◽  
Author(s):  
Alireza Habibzadeh ◽  
Mark R. Loewen ◽  
Nallamuthu Rajaratnam
Keyword(s):  
Hydraulic Jump ◽  
Mean Flow ◽  
Submerged Hydraulic Jump

Three-dimensional study of spatial submerged hydraulic jump

2007 ◽  
Vol 34 (9) ◽  
pp. 1140-1148 ◽  
Author(s):  
H K Zare ◽  
R E Baddour
Keyword(s):  
Velocity Field ◽  
Hydraulic Jump ◽  
Three Dimensional ◽  
Head Loss ◽  
Acoustic Doppler Velocimeter ◽  
Hydraulic Jumps ◽  
Orthogonal Components ◽  
Sequent Depth ◽  
Channel Bottom ◽  
Submerged Hydraulic Jump

A three-dimensional (3D) study of spatial submerged hydraulic jumps (SSHJs) was carried out using a physical model for Froude numbers Fr1 = 2.00 and 3.75 and width ratios α = 0.20 and 0.33. Three orthogonal components of the velocity field were obtained with an acoustic Doppler velocimeter (ADV). The 3D velocity field has indicated that the jump consisted of a central jet-like flow, close to the channel bottom, surrounded by vertical and horizontal circulations (rollers). The circulation was predominantly in vertical planes in the channel central region of the flow and in horizontal planes close to the walls. Vertical and horizontal profiles of stream-wise velocity characterized the 3D roller with two length scales, Lrv and Lrh. The strength of the roller was stronger close to the walls than at the centreline of the jump. Sequent depth and energy head loss for submerged symmetric hydraulic jumps are discussed in terms of the submergence ratio S = y3/y2.Key words: hydraulic jump, spatial, submerged, roller length, sequent depth, energy dissipation.

Submerged hydraulic jump with sediment-laden flow

2012 ◽  
Vol 27 (1) ◽  
pp. 100-111 ◽  
Author(s):  
Mohsen NASRABADI ◽  
Mohammad Hossein OMID ◽  
Javad FARHOUDI
Keyword(s):  
Hydraulic Jump ◽  
Submerged Hydraulic Jump

scholarly journals Extreme pressure forecasting methodology for the hydraulic jump downstream of a low head spillway

RBRH ◽  
2020 ◽  
Vol 25 ◽  
Author(s):  
Roberta Ferrão Hampe ◽  
Renato Steinke Júnior ◽  
Maurício Dai Prá ◽  
Marcelo Giulian Marques ◽  
Eder Daniel Teixeira
Keyword(s):  
Froude Number ◽  
Hydraulic Jump ◽  
Extreme Pressure ◽  
Discharge System ◽  
Flow Discharge ◽  
Economical Design ◽  
Low Froude Number ◽  
Low Head

ABSTRACT Extreme pressures in the hydraulic jump are associated with risk of damage to the flow discharge system of dams by a series of mechanisms. Therefore, understanding and predicting these efforts are crucial for the safe and economical design of discharge systems. Thus, this paper aims to validate an existing pressure forecasting methodology for estimating the extreme pressure in the hydraulic jump with low Froude number (below 4.5). Results have shown that the method may be used for this situation on a preliminary basis. Further studies are recommended to refine the technique and to achieve results that are more precise.

The Submerged Hydraulic Jump

1963 ◽  
Vol 89 (1) ◽  
pp. 139-162 ◽  
Author(s):  
N. S. Govinda Rao ◽  
N. Rajaratnam
Keyword(s):  
Hydraulic Jump ◽  
Submerged Hydraulic Jump
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