scholarly journals Odor Plumes and Animal Navigation in Turbulent Water Flow: A Field Study

1995 ◽  
Vol 188 (2) ◽  
pp. 111-116 ◽  
Author(s):  
R. K. Zimmer-Faust ◽  
C. M. Finelli ◽  
N. D. Pentcheff ◽  
D. S. Wethey
Keyword(s):  
Field Study ◽  
Water Flow ◽  
Animal Navigation ◽  
Odor Plumes ◽  
Turbulent Water

An experimental investigation of heat transfer in a spiral-coil tube with pulsating turbulent water flow

2015 ◽  
Vol 52 (9) ◽  
pp. 1779-1789 ◽  
Author(s):  
H. Ramezani Kharvani ◽  
F. Ilami Doshmanziari ◽  
A. E. Zohir ◽  
D. Jalali-Vahid
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Water Flow ◽  
Spiral Coil ◽  
Turbulent Water

Turbulent water flow in a channel at Reτ = 400 laden with 0.25 mm diameter air-bubbles clustered near the wall

2017 ◽  
Vol 29 (6) ◽  
pp. 065101 ◽  
Author(s):  
D. Lakehal ◽  
D. Métrailler ◽  
S. Reboux
Keyword(s):  
Water Flow ◽  
Air Bubbles ◽  
Turbulent Water

Reduction of the hydrodynamic resistance to turbulent water flow with copolymers of acrylamide, acrylonitrile, and 2-acrylamido-2-methylpropanesulfonic acid

2016 ◽  
Vol 89 (9) ◽  
pp. 1494-1499
Author(s):  
A. I. Nechaev ◽  
I. I. Lebedeva ◽  
O. G. Vasil’eva ◽  
A. S. Chashchukhin ◽  
V. A. Val’tsifer
Keyword(s):  
Water Flow ◽  
Hydrodynamic Resistance ◽  
Turbulent Water

The modification of coherent structure along a waving film by polymer exudation in turbulent water flow

2002 ◽  
Vol 3 ◽  
pp. N10 ◽  
Author(s):  
Yoshimichi Hagiwara ‡ ◽  
Taro Imamura ◽  
Atsushi Taki
Keyword(s):  
Water Flow ◽  
Coherent Structure ◽  
Turbulent Water

scholarly journals Design and Fabrication of Six-Degree of Freedom Piezoresistive Turbulent Water Flow Sensor

2002 ◽  
Vol 11 (4) ◽  
pp. 191-199
Author(s):  
Dzung Viet Dao ◽  
Toshiyuki Toriyama ◽  
John Wells ◽  
Susumu Sugiyama
Keyword(s):  
Water Flow ◽  
Degree Of Freedom ◽  
Flow Sensor ◽  
Six Degree Of Freedom ◽  
Turbulent Water

RANS VOF Simulations of Density-Stratified Air-Water Flow in a 2D Channel

2020 ◽  
Author(s):  
Chandrima Jana Maiti ◽  
Urmila Ghia ◽  
Leonid A. Turkevich
Keyword(s):  
Pressure Gradient ◽  
Water Flow ◽  
Fill Factor ◽  
Reynolds Numbers ◽  
Driving Pressure ◽  
Reynolds Stresses ◽  
Mean Velocity ◽  
Strongly Coupled ◽  
The Common ◽  
Turbulent Water

Abstract We perform RANS-VOF simulation of density-stratified, fully developed air-water flow in a 2D channel. The flow is completely specified by the (common) driving pressure gradient down the channel and by the fill factor (relative height of the heavier phase to the total height of the channel). Varying the pressure gradient and fill factor results in different flow combinations: namely, laminar air/laminar water, turbulent air/laminar water, turbulent air/turbulent water, laminar air/turbulent water. The focus of the study is the near-interface interaction when either or both phases are turbulent. The RANS-VOF equations are solved on a 2D channel with periodic inlet/outlet boundary conditions. For a fixed fill factor, the Reynolds numbers of each phase varies monotonically with driving pressure gradient. However, at fixed pressure gradient, the fluid Reynolds numbers are non-monotonic at high fill factor. This Reynolds number phase diagram is important in understanding the laminar and turbulent regimes of each phase. The mean velocity is axial (down the channel) and exhibits a dip below the free surface whenever one of the phases is turbulent. As expected, the diagonal Reynolds stresses <u’u’>, <v’v’>, are strongly coupled between the phases, however coupling in <u’v’> is less pronounced.

A LABORATORY EXPERIMENT OF ICE MELT BY PRESSURIZED TURBULENT WATER FLOW

2020 ◽  
Author(s):  
Flavien Beaud ◽  
◽  
Thomas Ulizio ◽  
Michael P. Lamb
Keyword(s):  
Laboratory Experiment ◽  
Water Flow ◽  
Ice Melt ◽  
Turbulent Water

scholarly journals Explanation of tuberculation scales formation in steel and iron pipes using the theory of wave motion of a liquid

2018 ◽  
Vol 178 ◽  
pp. 04002
Author(s):  
Alexey Andrianov ◽  
Evgeny Orlov
Keyword(s):  
Flow Velocity ◽  
Water Flow ◽  
Electrochemical Corrosion ◽  
Water Supply Systems ◽  
Water Flow Velocity ◽  
Corrosion Deposits ◽  
The Difference ◽  
Corrosion Of Steel ◽  
Supply Systems ◽  
Turbulent Water

Electrochemical corrosion of steel and iron pipes in water supply systems is a common problem that causes financial losses to operating companies and deteriorates water quality. A comprehensive study of corrosion deposits formation mechanism is necessary for a better understanding of the processes occurring in pipelines and for scientific justification of monitoring and predicting techniques. The influence of various factors (in particular the water flow velocity) on the formation, growth, and spatial distribution of tuberculation scales on the inner surface of pipes is considered. To study the effect of flow velocity, simple serial tests were carried out on segments of a steel non-galvanized pipe in static and dynamic conditions. The difference in the formation of anode and cathode sections in two dynamic modes is recognized. The first stage of tubercle formation is observed. It was assumed that in pipes with turbulent water flow near metal surface, waves forming tubercles are appeared, and the distribution of the tubercles is depend on water flow velocity.

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