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-   -   help please with forced convection (http://www.cfd-online.com/Forums/fluent/45938-help-please-forced-convection.html)

lucia September 5, 2007 14:33

help please with forced convection
 
Hi all,

I have a problem of forced convection inside a pipe. Inside of the pipe flow a hot fluid and outside is constantly cold (cold water).

In the boundary conditions of the wall, must I determine the Convection? Or is it correct if you only determine the Temperature of the cold medium?

Thanks!


Joe September 5, 2007 20:19

Re: help please with forced convection
 
You need to provide the external temperature and the effective heat transfer coefficient up to the wall-inner fluid boundary. The wall-inner fluid heat transfer is calculated by Fluent.

lucia September 6, 2007 05:55

Re: help please with forced convection
 
Thanks Joe!

Is this effective heat transfer coefficient up to the wall-inner fluid so: Ae*U = 1/ (1/hAe + ln(re/ri)/2piLk) (A0 = external area)? Also must I turn on the option "Shell conduction" and need I to provide the wall-thickness?

Thanks very much.


JAI SHANKAR V P[ September 7, 2007 16:59

Re: help please with forced convection
 
I AM JAI SHANKAR V P . I AM CURRENTLY WORKING AS SENIOR LECTURER WITH SNMIMT IN INDIA .I AM CURRENTLY COMPLEATING MY MASTERS IN PRODUCTION ENGINEERING WITH COCHIN UNIVERSITY OF SCIEANCE AND TECHNOLOGY , KOCHI, KERALA , INDIA

I AM VERY MUCH INTRESTED IN THE SUBJECT CFD

CAN YOU HELP[ ME STUDY THE SAME PLEASE MY EMAIL ID IS shankarvp@yahoo.co.in

with regards

jvp


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