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-   -   Urgent help:Heat transfer coefficient (https://www.cfd-online.com/Forums/fluent/50570-urgent-help-heat-transfer-coefficient.html)

ZoRbA February 16, 2009 09:15

Urgent help:Heat transfer coefficient
 
Hi,

I am estimating the heat transfer coefficient for a simple pipe flow which is subjected to constant heat flux. i would like to estiamte the Heat transfer coefficient (HTC) based on mean temperature inside the pipe. As Mean temperature varies along the length. it is difficult to change the reference value inside the report->reference values in FLUENT panel which is always a constant. Is there any procedure or UDF to estimate the HTC with mean temperature.

Thanks in advance and i need solution of above problem urgently. Please share your ideas.

Regards

Zorba

whiz February 16, 2009 10:22

Re: Urgent help:Heat transfer coefficient
 
calculate your HTC in postprecess. you can use custom field functions, or you export your result to a text file, then calculate it in excel. just for reference! whiz

ZoRbA February 17, 2009 08:10

Re: Urgent help:Heat transfer coefficient
 
Thank you for the information. Can you give me the custom field function to compute HTC


whiz February 17, 2009 08:25

Re: Urgent help:Heat transfer coefficient
 
You can directly define it in the FLUENT GUI.

Ralf Schmidt February 23, 2009 05:23

Re: Urgent help:Heat transfer coefficient
 
Hi!

see that discussion:

http://www.cfd-online.com/Forum/fluent.cgi?read=64024

Best wishes Ralf


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