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THMT-15. Proceedings of the Eighth International Symposium On Turbulence Heat and Mass Transfer
September, 15-18, 2015, Sarajevo, Bosnia and Herzegovina

DOI: 10.1615/ICHMT.2015.THMT-15


ISBN Print: 978-1-56700-427-4

ISBN CD: 978-1-56700-428-8

On universal heat transfer relationship for hot-wire data

pages 207-210
DOI: 10.1615/ICHMT.2015.THMT-15.320
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RESUMO

A well-known problem of convective heat transfer from a heated wire in a flow of air is studied experimentally using a single sensor hot-wire device with constant overheating relative to ambient temperature. Effect of the temperature difference between the wire and the fluid, the ambient temperature, and the finite length of a wire on the heat transfer is estimated quantitatively. It is shown that the method of cataloguing may be a more adequate tool for heat transfer data analysis in comparison with traditional nondimensional heat transfer relationships Nu=f(Re,Pr).

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