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Old   September 5, 2007, 14:33
Default help please with forced convection
  #1
lucia
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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!

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Old   September 5, 2007, 20:19
Default Re: help please with forced convection
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Joe
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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.
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Old   September 6, 2007, 05:55
Default Re: help please with forced convection
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lucia
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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.

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Old   September 7, 2007, 16:59
Default Re: help please with forced convection
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JAI SHANKAR V P[
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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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