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how to get temperature at wall

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Old   November 26, 2020, 11:34
Default how to get temperature at wall
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Tyler Richardson
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Hi,

I am putting together a UDF for calculating heat transfer coefficient, and i am having the strangest issue.

It looks like what is retrieved from my F_T(f,t) does not match the wall temperature, wall adjacent temperature, static temperature, or total temperature in my solution (solid pipe with constant heat flux, and fluid flowing through)

Is it expected that F_T(f,t) would grab the wall temperature?

How might i retrieve the wall temperature otherwise?

My code is quite simple:

Quote:

begin_f_loop(f,t) {

t0=THREAD_T0(t);
c0=F_C0(f,t);

TWadj = F_T(f,t);


C_UDMI(c0,t0,3) = TWadj;
F_UDMI(f,t,3) = TWadj;



} end_f_loop(f,t);
TIA!
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Old   January 25, 2021, 05:14
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Lie Wei
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hi, Tyler
I'm having the same problem as you. Have you found a solution?
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Old   January 25, 2021, 07:08
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Tyler Richardson
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Quote:
Originally Posted by Lie Wei View Post
hi, Tyler
I'm having the same problem as you. Have you found a solution?
Yes, it turns out in order to get F_T to match your wall temperature, you need to have similar mesh sizing on both sides of the wall. So you need to inflate your solid mesh similar to your fluid mesh.
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Old   February 6, 2021, 22:19
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Lie Wei
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Quote:
Originally Posted by tricha122 View Post
Yes, it turns out in order to get F_T to match your wall temperature, you need to have similar mesh sizing on both sides of the wall. So you need to inflate your solid mesh similar to your fluid mesh.
Thanks for your reply. however, there is no solid domain in my simulation. Is there any solution in this case?
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