Natural convection mass transfer behavior of long vertical annuli
The natural convection mass transfer behavior of the inner cylinder of a vertical annulus was studied by measuring the limiting current of the cathodic deposition of copper from acidified copper sulfate solution. Active cylinder height and copper sulfate concentration were varied to provide a (Sc.Gr) range of 1.8 x 10{sup 10}--3.3 x 10{sup 14}; under these conditions which lie in the transition region, the data were found to fit the equation: Sh = 0.325(Sc.Gr){sup 0.28} Comparison between the present data and previous related data in mass and heat transfer confirmed the fact that the product Sc.Gr is not the sole criterion for laminar-turbulent transition but the value of Sc or Pr plays also an important role.
- Research Organization:
- Lakehead Univ., Thunder Bay, Ontario (CA)
- OSTI ID:
- 20030405
- Journal Information:
- International Communications in Heat and Mass Transfer, Vol. 27, Issue 3; Other Information: PBD: Apr 2000; ISSN 0735-1933
- Country of Publication:
- United States
- Language:
- English
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