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Journal of Applied Electrochemistry

, Volume 13, Issue 3, pp 289–293 | Cite as

Mass transfer from cylinders rotating in Newtonian fluids and dilute polymer solutions

  • Y. Kawase
  • J. J. Ulbrecht
Papers

Abstract

A new theoretical expression for tubulent mass transfer from a rotating cylinder has been proposed using Levich's three-zone model. The predictions of this model, which has no adjustable parameters, were compared with available experimental data and with other correlations for Newtonian fluids and the agreement was found very satisfactory. Equally good agreement was found between the predictions of our model and the available data for mass transfer from a rotating cylinder under the conditions of maximum drag reduction.

Keywords

Polymer Experimental Data Physical Chemistry Mass Transfer Polymer Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Nomenclature

A

constant in Equation 18

D

diffusivity

DE

eddy diffusivity

d

diameter of cylinder

f

friction factor

h

heat transfer coefficient

k

mass transfer coefficient

l

mixing length

lc

modified mixing length defined by Equation 19

Nu

=hd/αH, Nusselt number

Pr

=ν/αH, Prandtl number

Re

=dU/ν, Reynolds number

Sc

=ν/D, Schmidt number

Sh

=kd/D, Sherwood number

U

velocity at the wall

υ0

friction velocity

υy

root mean square ofy-directional fluctuation velocities

y

distance perpendicular from surface

α

constant in Equation 4

αH

thermal diffusivity

β

value of dimensionless laminar sublayer thickness

δ1

thickness of laminar sublayer

α2

thickness of diffusion sublayer

η

fraction in Equation 3

ν

kinematic viscosity

ρ

density

τ0

tangential stress exerted on surface

Subscript

D

dilute polymer solution

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Copyright information

© Chapman and Hall Ltd. 1983

Authors and Affiliations

  • Y. Kawase
    • 1
  • J. J. Ulbrecht
    • 1
  1. 1.Department of Chemical EngineeringState University of New York at BuffaloBuffaloUSA

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