Experimental Study on Selective Withdrawal in a Two-Layer Reservoir Using a Temperature-Control Curtain

2010 ◽  
Vol 136 (4) ◽  
pp. 234-246 ◽  
Author(s):  
Yaser Shammaa ◽  
David Z. Zhu
Keyword(s):  
Experimental Study ◽  
Temperature Control ◽  
Selective Withdrawal

Selective withdrawal and spin-up of a rotating stratified fluid

1989 ◽  
Vol 199 ◽  
pp. 377-401 ◽  
Author(s):  
S. G. Monismith ◽  
T. Maxworthy
Keyword(s):  
Experimental Study ◽  
Velocity Profile ◽  
Side Wall ◽  
Relative Vorticity ◽  
Vertical Profiles ◽  
Selective Withdrawal ◽  
Vertical Diffusion ◽  
Layer Flow ◽  
Rotating Stratified Fluid ◽  
Over Time

We present an experimental study demonstrating that rotation has a pronounced effect on currents induced by selective withdrawal of fluid from a density-stratified reservoir. Our observations show that initiating outflow from the reservoir generates Kelvin shear waves. These waves propagate cyclonically around the perimeter of the reservoir, establishing an anticyclonic withdrawal-layer flow. This flow accelerates owing to the production of relative vorticity by compression of ‘planetary’ vorticity. The withdrawal-layer thickness as shown by vertical profiles of the horizontal velocity grows with time. Separation of the side-wall boundary layers in the corners of the tank causes the spun-up flow to eventually break up into a series of counterrotating gyres. We also present a model that describes many features of the spin-up process observed before onset of separation and subsequent gyre formation. The model shows that vertical diffusion of vorticity plays an important role in the spin up process, leading us to conclude that apparent thickening of the withdrawal layer over time, as seen in changes in the velocity profile, is associated with the vertical diffusion of the spun-up vorticity.

scholarly journals STUDY OF THE INFLUENCE OF THERMOSTATING THE WORKING AREA ON THE MECHANICAL PROPERTIES OF PRODUCTS OBTAINED BY FFF

2020 ◽  
pp. 73-76
Author(s):  
M. Kozenko ◽  
A. Makarov ◽  
E. Dyachenko ◽  
O. Sushkova
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Temperature Control ◽  
Effect Of Temperature ◽  
3D Printer ◽  
Analysis Of Results

An experimental study of the effect of temperature control of the working area of the FFF / FDM 3D printer on the mechanical properties of the products was carried out. Materials and methods of research and analysis of results were presented.

scholarly journals Experimental Study of Temperature Control using Soft Computing

2012 ◽  
Vol 52 (9) ◽  
pp. 1-6
Author(s):  
Nithya Venkatesan ◽  
N. Sivakumaran ◽  
P. Sivashanmuguham
Keyword(s):  
Experimental Study ◽  
Soft Computing ◽  
Temperature Control
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