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Energy Dissipators and Hydraulic Jump

Willi H. Hager
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TLDR
In this paper, a classical hydraulic jump in non-rectangular channel is described, followed by a submerged hydraulic jump using a bucket-type energy dissipator and a baffle rock.
Abstract: 
Part 1: Hydraulic Jump 1 Introduction 2 Classical Hydraulic Jump 3 Sloping Jump 4 Hydraulic Jump in Non-Rectangular Channel 5 Submerged Hydraulic Jump References Part 1 Notation Part 1 Part 2: Stilling Basins 6 Introduction 7 Steps and Sills 8 Baffle Rock 9 Effect of Roughness and Discharge 10 Expanding Channel 11 Bucket-type Energy Dissipator 12 Various Aspects of Stilling Basins 13 Types of Stilling Basins 14 Experiences with Stilling Basins References Part 2 Notation Part 2 Subject Index Author Index

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Journal ArticleDOI

Step-Pool Streams: Adjustment to Maximum Flow Resistance

Athol D. Abrahams, +2 more
- 01 Oct 1995 - 
TL;DR: In this article, a conceptual model is developed based on the notion that the largest floods are just capable of moving the largest debris in the channel, and the model suggests that step pools evolve toward a condition of maximum flow resistance because maximum resistance implies maximum stability.
Journal ArticleDOI

Morphodynamics and sedimentary structures of bedforms under supercritical-flow conditions: New insights from flume experiments

Matthieu J.B. Cartigny, +3 more
- 01 Apr 2014 - 
TL;DR: In this paper, the results of systematic flume experiments spanning a broad range of supercritical-flow bedforms (antidunes, chutes-and-pools and cyclic steps) developed in mobile sand beds of variable grain sizes are presented.
Journal ArticleDOI

Experimental study of the air–water shear flow in a hydraulic jump

Hubert Chanson, +1 more
- 01 Apr 2000 - 
TL;DR: The relationship between air content and bubble frequency has a parabolic shape, which is not yet understood but was observed previously in open channel flows as mentioned in this paper, and the results indicate an advective diffusion of air in the shear layer.
Journal ArticleDOI

Current knowledge in hydraulic jumps and related phenomena: A survey of experimental results

Hubert Chanson
- 01 Mar 2009 - 
TL;DR: In this article, a review of recent advances in turbulent hydraulic jumps are developed: the non-breaking undular hydraulic jump, the positive surge and tidal bore, and the air bubble entrainment in hydraulic jumps with roller.
Journal ArticleDOI

Hydraulic Jumps on Corrugated Beds

S. A. Ead, +1 more
- 14 Jun 2002 - 
TL;DR: In this paper, the results of a laboratory study of hydraulic jumps on corrugated beds are presented, where experiments were performed for a range of Froude numbers from 4 to 10 and three values of the relative roughness t/y 1 of 0.50, 0.43, and 0.25 were studied.