Electrodiffusional determination of momentum transfer in annular flows: Axial developing and swirling decaying flows
Identifieur interne : 000557 ( France/Analysis ); précédent : 000556; suivant : 000558Electrodiffusional determination of momentum transfer in annular flows: Axial developing and swirling decaying flows
Auteurs : J. Legrand [France] ; P. Legentilhomme [France] ; H. Aouabed [France] ; M. Ould-Rouis [Algérie] ; C. Nouar [Algérie] ; A. Salem [Algérie]Source :
- Journal of Applied Electrochemistry [ 0021-891X ] ; 1991-12-01.
Abstract
Abstract: Two types of developing flows were studied: the axial developing flow occuring downstream of fixed beds of spheres, and the swirling decaying flow induced by a tangential inlet. In both flows, the momentum transfer was investigated for different axial distances and for a Reynolds number range of 90 to 3780 using an electrochemical method. Measurement of the wall shear stress was achieved by means of the limiting electrodiffusional current on circular microelectrodes. Comparisons of swirling flow and axial developing and developed flows are made in terms of velocity gradients and friction factors.
Url:
DOI: 10.1007/BF01041447
Affiliations:
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<front><div type="abstract" xml:lang="en">Abstract: Two types of developing flows were studied: the axial developing flow occuring downstream of fixed beds of spheres, and the swirling decaying flow induced by a tangential inlet. In both flows, the momentum transfer was investigated for different axial distances and for a Reynolds number range of 90 to 3780 using an electrochemical method. Measurement of the wall shear stress was achieved by means of the limiting electrodiffusional current on circular microelectrodes. Comparisons of swirling flow and axial developing and developed flows are made in terms of velocity gradients and friction factors.</div>
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