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Wall Heat Transfer Coefficient

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Old   June 7, 2009, 15:52
Default Wall Heat Transfer Coefficient
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Sachin Thakre
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hello
can anybody tell me, how CFX is calculating the wall heat transfer coefficient. Is it different from the following relation
h=Q/(wall temperature-Bulk Temperature)
where Q= heat flux
h= heat transfer coeff.
thank you..
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Old   June 8, 2009, 06:55
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Glenn Horrocks
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Hi,

Yes, that is correct. Note that by default CFX locally calculates the Bulk Temperature so it is not constant. If you want to compare the h from CFX to literature values you will probably have to use the expert parameter to fix the Bulk Temperature to a value.

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Old   June 8, 2009, 07:46
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Sachin Thakre
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Thank you very much Glenn
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Old   July 14, 2009, 22:25
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Is this for transient or steady state regime?
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