Heat transfer in a Bénard–Kármán vortex street in air and in water

The near temperature field downstream of a heated ribbon is investigated experimentally in air and in water in the forced convection regime corresponding to the 2-D periodic wake. Previous measurements have shown that in a such situation the structure of the velocity fields is found similar in the t...

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Bibliographic Details
Published in:International journal of heat and mass transfer 1999-01, Vol.42 (16), p.3131-3136
Main Authors: Lecordier, J.C., Dumouchel, F., Paranthoën, P.
Format: Article
Language:English
Subjects:
Air
Convection and heat transfer
Engineering Sciences
Exact sciences and technology
Flow measurement
Flow patterns
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Physics
Prandtl number
Reactive fluid environment
Reynolds number
Rotational flow and vorticity
Separated flows
Temperature
Turbulent flows, convection, and heat transfer
Vortex flow
Wakes
Water
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Summary:The near temperature field downstream of a heated ribbon is investigated experimentally in air and in water in the forced convection regime corresponding to the 2-D periodic wake. Previous measurements have shown that in a such situation the structure of the velocity fields is found similar in the two fluids when the experiments are performed at the same effective Reynolds number. When this condition is satisfied it appears that the structure of the corresponding temperature fields is found significantly different in relation with the Prandtl number values of the two fluids.
ISSN:0017-9310
1879-2189
DOI:10.1016/S0017-9310(99)00010-1