Internal Flow in Hydraulic Jumps

McCorquodale, John A.; Khalifa, Ali

doi:10.1061/(asce)0733-9429(1983)109:5(684)

Cited by 65 publications

(45 citation statements)

References 15 publications

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“…This unbalancing may be a consequence of the misalignment of the weight of the liquid with the reaction of the bottom, although it may also be roughly explained by neglecting this term. This simplification has been made by several authors (e.g., [12,24,25,14,26]). …”

Section: Physical Remarks and Basic Assumptionsmentioning

confidence: 99%

“…Deviations of pressure from this distribution are due to: the diagonal terms of the Reynolds stress tensor; the centrifugal forces (the effects of streamline curvature); the deviations of the water motion from real phase homogeneity (air entrainment in the roller). Although all of these effects are present in the jump [25,26], they are not important from the integral point of view.…”

Section: Physical Remarks and Basic Assumptionsmentioning

confidence: 99%

See 1 more Smart Citation

Linear and angular momentum conservation in hydraulic jump in diverging channels

Valiani¹,

Caleffi²

2011

Advances in Water Resources

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Section: Physical Remarks and Basic Assumptionsmentioning

confidence: 99%

Section: Physical Remarks and Basic Assumptionsmentioning

confidence: 99%

Linear and angular momentum conservation in hydraulic jump in diverging channels

Valiani¹,

Caleffi²

2011

Advances in Water Resources

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“…Gill [4] also found that the sequent depth ratio was over estimated if the channel boundary flow resistance was neglected. The classical hydraulic jump was studied extensively by Peterka [5], Rajaratnam [6], Leutheusser and Kartha [7], McCorquodale and Khalifa [8], Hager and Bremen [9], Hager [10], Wu and Rajaratnam [11] and CarolloFerro [3]. Bubbly two-phase flow in a hydraulic jump using a flow visualization technigue were studied by Mossa and Tolve [12].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Hydraulic Jump in a Gradually Expanding Rectangular Stilling Basin with Roughened Bed

Hassanpour

Dalir

Farsadizadeh

et al. 2017

Water

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Abstract:The paper presents the results of an experimental study carried out to investigate the effect of geometric and hydraulic parameters on energy dissipation and location of the hydraulic jump, with a change in the height of roughness elements and the divergence of walls in different discharges. Experiments were conducted in a horizontal rectangular basin with gradual expansion 0.5 m wide and 10 m long. Four physical models were fixed in the flume. The measured characteristics of the hydraulic jump with different divergences ratio (B = b 1 /b 2 = 0.4, 0.6, 0.8, 1) and the inflow Froude numbers (6 < Fr 1 < 12) were compared with each other and with the corresponding values measured for the classical hydraulic jump. The results showed that the tailwater depth required to form a hydraulic jump and also the roller length of the hydraulic jump and the length of the hydraulic jump on a gradual expansion basin with the rough bed were appreciably smaller than that of the corresponding hydraulic jumps in a rectangular basin with smooth and rough bed. With the experimental data, empirical formulae were developed to express the hydraulic jump characteristics relating to roughness elements height and divergence ratio of wall. Also, the applicability of some empirical relationships for estimating the roller length was tested.

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“…Experimental and theoretical studies of hydraulic jumps in one and two layer system has been presented in the literature (MCcorquodale,1986), the numbers of work for two layer case is considerably less than that of single layer [14]. Benton (1954) first treated internal hydraulics jumps for two moving layers .He recognize that the principles of momentum conservation and decrease of energy are together insufficient to specify downstream condition, given a complete description of upstream flow.…”

Section: Literature Reviewmentioning

confidence: 99%

Investigation of Hydraulic Jump Due to Two Phase Air -Water Flow in a Rectangular Duct

I.A¹

2015

Int. Jour. Des. Manf. Tech.

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The This paper presents an experimental investigation of the occurrence of hydraulic jumps due to two phase air-water flow in a rectangular duct in a horizontal position as well as inclined position .Hydraulic jump is a phenomenon frequently observed in an open channel flow. It occurs when liquid at high velocity discharges into a zone of lower velocity leading to a rather abrupt rise (a step or standing wave) in the liquid surface. In this present experimental investigation, various parameters like strength of the hydraulic jump, location of hydraulic jump, length of hydraulic jump is found out and the effect of flow rate of water and the effect of air flow on hydraulic jump is studied .Hydraulic jump results in the reduction of total energy of a moving fluid, which in turn prevents the fluid from scouring the channel banks. Also hydraulic jump enables a portion of the fluid's kinetic energy to reduce which stabilizes downstream flow conditions. Some of the other application areas of this phenomenon are efficient operation of flow measurement flumes, mixing of chemicals, intense mixing and gas transfer in chemical processes, desalination of sea water and aeration of streams which are polluted by bio-degradable wastes.

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Internal Flow in Hydraulic Jumps

Cited by 65 publications

References 15 publications

Linear and angular momentum conservation in hydraulic jump in diverging channels

Linear and angular momentum conservation in hydraulic jump in diverging channels

An Experimental Study of Hydraulic Jump in a Gradually Expanding Rectangular Stilling Basin with Roughened Bed

Investigation of Hydraulic Jump Due to Two Phase Air -Water Flow in a Rectangular Duct

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