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UDF For Compute Bulk Temprature

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Old   August 23, 2013, 12:46
Red face UDF For Compute Bulk Temprature
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amir okhovat
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Hi guys
I want to calculate bulk temperature in a pipe. Can anyone help me to write a udf for this job.

thanks very much
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Old   August 23, 2013, 22:59
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François Grégoire
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You want to calculate T_bulk when, why, for what, each iteration, each time step?... Without details, nobody can help you. Plus you are not on the udf forum.
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Old   July 6, 2018, 13:52
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Quote:
Originally Posted by amirokhovat View Post
Hi guys
I want to calculate bulk temperature in a pipe. Can anyone help me to write a udf for this job.

thanks very much


Hello
Can you find it???
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Old   July 6, 2018, 20:53
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A UDF is not required for calculating the average temperature in the domain. Instead, use Postprocessing > Reports > Volume Integrals.
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Old   July 7, 2018, 14:20
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A UDF is not required for calculating the average temperature in the domain. Instead, use Postprocessing > Reports > Volume Integrals.


Thanks ‚e,
My simulation is Transient and I have vortex shidding around cycl (cycl is in channel {internal flow} )
And during simulation Nuselt change on wall up/down channel so I have to compute Average Nuselt during all time steps,...
but I don’t know how can I do it,....
I know for steady simulation do it ( find Tbulk in report > surface integral > mass weight...> ....and set it in Reference Value then report and lab lab lab)
But for transient simulation it is not true,...
And I don’t know how can I find it,....
Please help me,....
Best regards
Tafresh.University
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Old   July 8, 2018, 20:28
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The bulk temperature can be calculated for each iteration by employing a volume monitor from Solution > Monitors > Volume Monitors and using the same report settings as before. Similarly, the Nusselt number could be calculated by selecting the corresponding Field Variable under Wall Fluxes... > Surface Nusselt Number.
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