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August 5, 2013, 08:22 |
QUICK QUESTION: How it comes !!!
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#1 |
New Member
Mfm
Join Date: Jun 2013
Posts: 18
Rep Power: 12 |
Hi all ,
Something weird was going on fluent. I have been simulating heat exchanger (tube bank) problem. When setting the B.C's I set the temperature of the cylinders to 343.15 but after iterating to some residual when doing surface integral to the cylinder to just check the temperature THE TEMPRATURE OF THE CYLINDERS WAS NOT AS I SET AS A BOUNDARY CONDITION !!!!! please reply if you know the solution I thought that maybe there are not enough nodes on the surface of the cylinders but as I increased the nodes the difference still huge (like 25c) |
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August 7, 2013, 21:38 |
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#2 |
New Member
Mfm
Join Date: Jun 2013
Posts: 18
Rep Power: 12 |
Really no one can answer !!
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August 8, 2013, 01:21 |
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#3 |
Senior Member
Paritosh Vasava
Join Date: Oct 2012
Location: Lappeenranta, Finland
Posts: 732
Rep Power: 22 |
Did your case converge properly? Put some pictures of the mesh and temperature distribution.
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August 8, 2013, 01:30 |
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#4 |
Member
EMAVI V SURYA SAMPATH
Join Date: Aug 2011
Location: Malaysia
Posts: 85
Rep Power: 14 |
yes, it might not yet converged properly.!
Check the result after obtaining some convergence. |
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August 9, 2013, 07:23 |
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#5 |
New Member
Mfm
Join Date: Jun 2013
Posts: 18
Rep Power: 12 |
Uploaded with ImageShack.us Hi I tried to do a sanpshot of all thing. All the residuals are belowe 10-7 and still the specified bounddary condition doesnt match with the computed one |
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August 9, 2013, 07:49 |
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#6 |
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,398
Rep Power: 46 |
Have a look at the definition of the total temperature in fluent.
Then evaluate the static temperature instead. |
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August 9, 2013, 15:13 |
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#7 |
New Member
Mfm
Join Date: Jun 2013
Posts: 18
Rep Power: 12 |
I will do
Thank you so much to all who replyed |
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