Coaxial Cylinder Oscillating Viscometer

1973 ◽  
Vol 44 (10) ◽  
pp. 1497-1499
Author(s):  
M. Bosco Masera
Keyword(s):  
Coaxial Cylinder ◽  
Oscillating Viscometer

Falling coaxial cylinder viscometry of polymer melts

1972 ◽  
Vol 50 (5) ◽  
pp. 576-580 ◽  
Author(s):  
Kyosaku Sato ◽  
Alfred Rudin ◽  
K. K. Chee
Keyword(s):  
Polymer Melts ◽  
Coaxial Cylinder

Radiation Configuration Factors Between Disks and a Class of Axisymmetric Bodies

1982 ◽  
Vol 104 (3) ◽  
pp. 426-431 ◽  
Author(s):  
M. H. N. Naraghi ◽  
B. T. F. Chung
Keyword(s):  
Numerical Integration ◽  
Analytical Solutions ◽  
Coaxial Cylinder ◽  
Present Approach ◽  
Shape Factors ◽  
Present Technique ◽  
Analytical Formulae ◽  
View Factors ◽  
Axisymmetric Bodies

A general formulation is developed for the radiation shape factors between a disk and a class of coaxial axisymmetric bodies such as cylinder, cone, ellipsoid, and paraboloid. In certain cases, the view factors can be derived analytically directly from the present technique, while in others, they can be generated from a single numerical integration. The analytical solutions for view factors from a disk to a coaxial cylinder based on the present approach are found to agree with those published earlier. The analytical formulae of view factors from disks or annular rings to circular cones, truncated cones, ellipsoid, paraboloids, and truncated praboloid are herein presented.

scholarly journals Use of Coaxial-Cylinder Viscometers and Capillary-Tube Viscometers for Suspensions

Nature ◽  
1950 ◽  
Vol 166 (4234) ◽  
pp. 1074-1074 ◽  
Author(s):  
G. F. EVESON ◽  
R. L. WHITMORE ◽  
STACEY G. WARD
Keyword(s):  
Capillary Tube ◽  
Coaxial Cylinder

A rotational double coaxial cylinder viscometer

1972 ◽  
Vol 11 (3-4) ◽  
pp. 275-285 ◽  
Author(s):  
B. Enoksson
Keyword(s):  
Coaxial Cylinder ◽  
Cylinder Viscometer

Experimental and modeling evaluation of upward and downward velocities in the coaxial flotation column

2001 ◽  
Vol 43 (8) ◽  
pp. 195-201 ◽  
Author(s):  
K. Park ◽  
J.-M. Cho ◽  
J. Oh ◽  
K. Chung
Keyword(s):  
Removal Efficiency ◽  
Pilot Scale ◽  
Coaxial Cylinder ◽  
Treated Water ◽  
Flotation Column ◽  
Solids Loading ◽  
Solids Concentration ◽  
Upward Velocity ◽  
Solids Removal

This study was conducted to show the influence of upward velocity in the inner column and downward velocity in the outer column of the coaxial cylinder-type flotation column on the solids removal efficiency, solids concentration in the treated water, and so on. The SIMPLE (Semi-Implicit Method for Pressure Linked Equation) solution was applied to the coaxial flotation column to simulate the velocity vectors of the elements of water flowing in the column. The effects of solids loading and residence time in the agglomerate separation zone on the solids removal efficiency were also tested. In the pilot scale coaxial DAF column experiments with solids concentration of 1,000–2,000 mg of SS per liter and solids loading less than 350 kg/m2/day, approximately 90% of the solids removal efficiencies were obtained using the upward velocity of up to 110 cm/min in the contact zone of the inner column and the downward velocity of up to 30 cm/min in the outer column. In the simulation, similar results were observed as in the experiments. The solids loading in the excess of 350 kg/m2/day caused the instability of the sludge float layer and aggravated the quality of the treated water.

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