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The influence of rotation on turbulent flow and heat transfer in an annulus between independently rotating tubes

Rothe, T. and Pfitzer, H. (1997):
The influence of rotation on turbulent flow and heat transfer in an annulus between independently rotating tubes.
In: Heat and Mass Transfer, 32 (5), pp. 353-364. ISSN 0947-7411,
[Article]

Abstract

Experimental and numerical investigations of turbulent flow and heat transfer have been performed in a concentric annulus between independently rotating tubes. Numerical predictions, applying a Reynolds stress turbulence model, are compared with experimental fluid flow and heat transfer results for the case of a heated outer tube and an adiabatic inner tube. Compared to the above mentioned boundary conditions for the conservation equation of energy, differences in heat transfer in case of a heated inner tube and an adiabatic outer one, are examined by analysis, applying a mixing length turbulence model. Numerical investigations with both kinds of models about the influence of annulus radius ratio make evident that due to different superimpositions of centrifugal force and additional shear stress there is a wide variation of effects on fluid flow and heat transfer caused by the rotation of the inner and the outer tube.

Item Type: Article
Erschienen: 1997
Creators: Rothe, T. and Pfitzer, H.
Title: The influence of rotation on turbulent flow and heat transfer in an annulus between independently rotating tubes
Language: English
Abstract:

Experimental and numerical investigations of turbulent flow and heat transfer have been performed in a concentric annulus between independently rotating tubes. Numerical predictions, applying a Reynolds stress turbulence model, are compared with experimental fluid flow and heat transfer results for the case of a heated outer tube and an adiabatic inner tube. Compared to the above mentioned boundary conditions for the conservation equation of energy, differences in heat transfer in case of a heated inner tube and an adiabatic outer one, are examined by analysis, applying a mixing length turbulence model. Numerical investigations with both kinds of models about the influence of annulus radius ratio make evident that due to different superimpositions of centrifugal force and additional shear stress there is a wide variation of effects on fluid flow and heat transfer caused by the rotation of the inner and the outer tube.

Journal or Publication Title: Heat and Mass Transfer
Journal volume: 32
Number: 5
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
Date Deposited: 26 Feb 2015 16:17
Official URL: http://dx.doi.org/10.1007/s002310050132
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