Planar hydraulic jump and associated hysteresis in near horizontal confined flow

2021 ◽  
Vol 6 (8) ◽  
Author(s):  
Mrinmoy Dhar ◽  
Gargi Das ◽  
Prasanta Kumar Das
Keyword(s):  
Hydraulic Jump ◽  
Confined Flow

ESTIMATION OF HYDRAULIC JUMP CHARACTERISTICS IN STILLING BASIN WITH GUIDE WALLS

2012 ◽  
Vol 40 (6) ◽  
pp. 1599-1609
Author(s):  
Habib A.A. ◽  
Abdel-Azim M. Ali ◽  
Abd-Allh Y.M ◽  
Saleh y.k.
Keyword(s):  
Hydraulic Jump ◽  
Stilling Basin

Characterization of Structural Properties in High Reynolds Hydraulic Jump Based on CFD and Physical Modeling Approaches

2020 ◽  
Vol 146 (12) ◽  
pp. 04020079 ◽  
Author(s):  
Juan Francisco Macián-Pérez ◽  
Arnau Bayón ◽  
Rafael García-Bartual ◽  
P. Amparo López-Jiménez ◽  
Francisco José Vallés-Morán
Keyword(s):  
Structural Properties ◽  
Physical Modeling ◽  
Hydraulic Jump ◽  
Modeling Approaches ◽  
High Reynolds

scholarly journals Vortex breakdown in a two-fluid confined flow generated in a cylindrical container

2020 ◽  
Vol 1677 ◽  
pp. 012076
Author(s):  
B. R. Sharifullin ◽  
I. V. Naumov ◽  
M. A. Tsoy ◽  
V. N. Shtern
Keyword(s):  
Vortex Breakdown ◽  
Cylindrical Container ◽  
Confined Flow ◽  
Two Fluid

Numerical simulation of hydraulic jump

1994 ◽  
Vol 37 (8) ◽  
pp. 1381-1397 ◽  
Author(s):  
S. Chippada ◽  
B. Ramaswamy ◽  
M. F. Wheeler
Keyword(s):  
Numerical Simulation ◽  
Hydraulic Jump

scholarly journals The Hydraulic Jump in Liquid Helium

2006 ◽  
Author(s):  
Étienne Rolley ◽  
Claude Guthmann ◽  
Michael S. Pettersen ◽  
Christophe Chevallier
Keyword(s):  
Liquid Helium ◽  
Hydraulic Jump

DENSITY OSCILLATION FROM NANOSCALE TO MACROSCALE

2008 ◽  
Vol 22 (27) ◽  
pp. 2649-2658 ◽  
Author(s):  
X. Y. CHEN ◽  
Y. LIU ◽  
J. M. YANG
Keyword(s):  
Molecular Dynamics ◽  
Channel Flow ◽  
Channel Width ◽  
Density Structure ◽  
Flux Rate ◽  
Confined Fluid ◽  
Threshold Channel ◽  
Micro Channels ◽  
Confined Flow ◽  
Density Oscillation

The effect of channel width on the density structure of confined fluid in the nano-/micro-channels is examined by equilibrium molecular dynamics (EMD) simulation. It was found that the density oscillation occurs near the wall in both cases of the macroscale or nanoscale confined flow. There exists a threshold channel width L threshold , when channel width H<L threshold , density oscillates throughout the channel. When H>L threshold , L threshold is constant and about 5–6 molecular diameter long, and the density becomes uniform beyond this threshold layer. A newly defined ch number may serve to be the parameter to compare similarity in the micro-/nano-scale channel flow. Moreover, the effect of the density oscillation on fluid mass flux rate is examined quantitatively. The result shows that the effect should be considered when the channel width is below 5 molecular diameter.

scholarly journals Application of a model of internal hydraulic jumps

2017 ◽  
Vol 834 ◽  
pp. 125-148 ◽  
Author(s):  
S. A. Thorpe ◽  
J. Malarkey ◽  
G. Voet ◽  
M. H. Alford ◽  
J. B. Girton ◽  
...  
Keyword(s):  
Hydraulic Jump ◽  
Mixing Layer ◽  
Strong Support ◽  
Deep Ocean ◽  
Hydraulic Jumps ◽  
Model Predictions ◽  
Mode 2 ◽  
Mediterranean Outflow ◽  
Unknown Structure ◽  
Internal Hydraulic Jump

A model devised by Thorpe & Li (J. Fluid Mech., vol. 758, 2014, pp. 94–120) that predicts the conditions in which stationary turbulent hydraulic jumps can occur in the flow of a continuously stratified layer over a horizontal rigid bottom is applied to, and its results compared with, observations made at several locations in the ocean. The model identifies two positions in the Samoan Passage at which hydraulic jumps should occur and where changes in the structure of the flow are indeed observed. The model predicts the amplitude of changes and the observed mode 2 form of the transitions. The predicted dissipation of turbulent kinetic energy is also consistent with observations. One location provides a particularly well-defined example of a persistent hydraulic jump. It takes the form of a 390 m thick and 3.7 km long mixing layer with frequent density inversions separated from the seabed by some 200 m of relatively rapidly moving dense water, thus revealing the previously unknown structure of an internal hydraulic jump in the deep ocean. Predictions in the Red Sea Outflow in the Gulf of Aden are relatively uncertain. Available data, and the model predictions, do not provide strong support for the existence of hydraulic jumps. In the Mediterranean Outflow, however, both model and data indicate the presence of a hydraulic jump.

Sign in / Sign up

Export Citation Format

Share Document