Laminar Forced Convection Over Rotating Bodies

1974 ◽  
Vol 96 (4) ◽  
pp. 463-466 ◽  
Author(s):  
B. T. Chao ◽  
R. Greif
Keyword(s):  
Mass Transfer ◽  
Forced Convection ◽  
Schmidt Number ◽  
Surface Condition ◽  
Computational Procedure ◽  
Body Of Revolution ◽  
Nonuniform Surface ◽  
Rotating Body ◽  
Laminar Forced Convection ◽  
Rotating Bodies

A simple computational procedure is described for ascertaining the heat or mass transfer in laminar forced convection over a rotating body of revolution. The analysis is applicable to nonuniform surface condition and for fluids having a large or a moderate value of the Prandtl (Schmidt) number. Examples are given to illustrate the usefulness of the analysis as well as to expose its limitation.

Laminar Forced Convection Mass Transfer to Ordered and Disordered Single Layer Arrays of Micro-Spheres

2012 ◽  
Author(s):  
D. Ambesi ◽  
C. R. Kleijn
Keyword(s):  
Mass Transfer ◽  
Forced Convection ◽  
Sherwood Number ◽  
Single Layer ◽  
Reynolds Numbers ◽  
Frontal Area ◽  
High Reynolds Numbers ◽  
Schmidt Numbers ◽  
High Reynolds ◽  
Laminar Forced Convection

We study laminar forced convection mass transfer to single layer arrays of equidistantly and non-equidistantly spaced micro-spheres. We report average Sherwood numbers as a function of geometry and flow conditions, for open frontal area fractions between 0.04 and 0.95, Schmidt numbers between 0.7 and 10, and Reynolds numbers (based on micro-sphere diameter and the free stream velocity) between 0.1 and 100. For equidistantly spaced arrays of micro-spheres we propose a general analytical expression for the average Sherwood number as a function of the Reynolds number, Schmidt number and the open frontal area fraction, as well as asymptotic scaling rules for small and large Reynolds. For all studied Schmidt numbers, equidistant arrays exhibit decreasing average Sherwood numbers for decreasing open frontal area fractions at low Reynolds numbers. For high Reynolds numbers, the Sherwood number approaches that of a single spheres in cross-flow, independent of the open frontal area fraction. For equal open frontal area fractions, the Sherwood number in non-equidistant arrays is lower than in equidistant arrays for intermediate Reynolds numbers. For very low and high Reynolds numbers, non-uniformity does not influence mass transfer.

Laminar forced convection about rotating bodies at low Pr-number

1997 ◽  
Vol 33 (1-2) ◽  
pp. 81-84
Author(s):  
K. Al-Jamal ◽  
M. A. I. El-Shaarawi ◽  
Z. Kodah
Keyword(s):  
Forced Convection ◽  
Laminar Forced Convection ◽  
Rotating Bodies
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