The velocity field in a vessel with rotating cylinder equipped with radical blades

1974 ◽  
Vol 39 (1) ◽  
pp. 71-82 ◽  
Author(s):  
I. Fořt ◽  
M. Ludvík ◽  
J. Číp
Keyword(s):  
Velocity Field ◽  
Rotating Cylinder

Homogeneous turbulence in the presence of rotation

1990 ◽  
Vol 220 ◽  
pp. 1-52 ◽  
Author(s):  
L. Jacquin ◽  
O. Leuchter ◽  
C. Cambonxs ◽  
J. Mathieu
Keyword(s):  
Spectral Analysis ◽  
Velocity Field ◽  
Rotation Axis ◽  
Rotating Cylinder ◽  
Honeycomb Structure ◽  
Theoretical Interpretation ◽  
Hot Wire ◽  
Body Rotation ◽  
Solid Body Rotation ◽  
The Subject

Turbulence in solid-body rotation is generated by a flow of air passing through a rotating cylinder containing a dense honeycomb structure and a turbulence-producing grid. The velocity field is probed downstream of this device by hot-wire probes. Using the statistical quantities characterizing the fluctuating field, we show that the rotation affects mainly the components normal to the rotation axis and that these effects are triggered when the Rossby numbers constructed from macroscopic turbulent quantities, are less than unity. These results are discussed in the framework of other available experimental results on the subject. A theoretical interpretation, chiefly based on spectral analysis, is then proposed to explain the trends of the observations.

Experimental Studies of External Hygrocysts

1980 ◽  
Vol 102 (2) ◽  
pp. 226-230 ◽  
Author(s):  
J. P. Kovac ◽  
R. T. Balmer
Keyword(s):  
Steady State ◽  
Velocity Field ◽  
Film Thickness ◽  
Experimental Studies ◽  
Three Dimensional ◽  
Rotating Cylinder ◽  
Surface Velocity ◽  
Data Sets ◽  
Centrifugal Acceleration ◽  
Average Film Thickness

The three-dimensional banding phenomenon that occurs on the outside of single horizontal rotating cylinders covered with a liquid film was experimentally studied. Over 400 data sets from a variety of cylinders and liquids produced an emperical correlation between the number of bands formed and the rotational Reynolds, Weber, and Froude numbers. The average film thickness on the top of the rotating cylinder was found to be independent of the physical properties of the liquid and the centrifugal acceleration of the cylinder. The surface velocity measured in the crown of the bands was found to be nearly the same as that predicted by the steady state unbanded velocity field solution of Moffatt.

Viscosity Evaluation of Multi-phases Flux by Rotating Cylinder Method

2009 ◽  
Vol 95 (12) ◽  
pp. 807-812 ◽  
Author(s):  
Sohei Sukenaga ◽  
Shinichiro Haruki ◽  
Yoshinori Yamaoka ◽  
Noritaka Saito ◽  
Kunihiko Nakashima
Keyword(s):  
Rotating Cylinder ◽  
Cylinder Method
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