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-   -   Heat transfer coefficient (http://www.cfd-online.com/Forums/fluent/44706-heat-transfer-coefficient.html)

andrew May 15, 2007 05:49

Heat transfer coefficient
 
Hi all,

i have a long rectangular channel and the bulk temperature is much lower than the wall temperature but the results that i am getting after surface integral it using area weighted average is negative...What does negative heat transfer coefficient means in FLUENT? is it a reverse flow in the heat transfer? but how could this happen as the wall temperature is much higher than the bulk temperature? thank u in advance...

nick May 15, 2007 08:55

Re: Heat transfer coefficient
 
the heat transfer coefficient cannot be negative. check your reference temperature.


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