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Old   May 20, 2011, 11:37
Default bulk local temperature
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Nima Sam
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hi foamer
i would like to calculate nusselt in axisymmetric pipe, T reference in nusselt equation is local bulk mean temperature, how can i calculate it?
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Old   May 20, 2011, 19:19
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Kai
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The bulk temperature is usually calculated by setting y+=250 in turbulent wall temperature function.

you may find some clue at
B.U. Bae, H.Y. Yoon, D.J. Euh, C.H. Song and G.C. Park, Computational analysis of a subcooled boiling ow with a one-group interfacial area transport equation", J. Nucl. Sci. Technol. 45, 341 (2008)
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Old   May 21, 2011, 01:49
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thank you, i will look at it but my case is in a micro channel and its laminar !!!
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