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August 27, 2014, 10:29
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problem with heat transfer modeling!
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#1 |
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Senior Member
Amin
Join Date: Oct 2013
Location: Germany
Posts: 397
Rep Power: 14  |
Hey
I have a comic problem with heat transfer modeling! I'm modeling heat transfer in electronic components with using "source term" option! But when the residuals converges the temperature of component is more than 1000K but temperature of surrounding air is same inlet temperature(about 300K) What do you think? Where do you think I am wrong? |
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August 29, 2014, 03:25
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#2 |
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Senior Member
Amin
Join Date: Oct 2013
Location: Germany
Posts: 397
Rep Power: 14 |
Any idea friends?
I'm really confused! I'm checked very things but the problems exists yet!  The pressure and velocity contours are logical but temperature is irrational! Also I Solved a simple problem (a triangle with heat flux BC) but a same problem happens! the pre. & velocity & temperature contours attached! any reply could help me to solve the problem! |
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August 29, 2014, 17:09
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#3 | |
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Senior Member
Syavash Asgari
Join Date: Apr 2010
Posts: 473
Rep Power: 18 |
Quote:
As you pointed out, this is a conjugate heat transfer (CHT) problem. make sure to select "coupled" option in thermal tab of the solid wall boundary condition. Bests. |
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August 29, 2014, 23:40
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#4 | |
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Senior Member
Amin
Join Date: Oct 2013
Location: Germany
Posts: 397
Rep Power: 14 |
Quote:
It's ok! I'm checked the problem with coupled and I'm ensure about create shadow wall but the problem exist yet! |
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August 30, 2014, 16:48
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#5 | |
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Senior Member
Syavash Asgari
Join Date: Apr 2010
Posts: 473
Rep Power: 18 |
Quote:
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August 31, 2014, 09:12
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#6 | |
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Senior Member
Amin
Join Date: Oct 2013
Location: Germany
Posts: 397
Rep Power: 14 |
Quote:
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October 7, 2014, 09:22
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#7 |
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New Member
Midhun
Join Date: Oct 2014
Location: Bangalore , India
Posts: 7
Rep Power: 11   |
check the value u have given,,.. for example if u want to give 3000Watts and the volume of the heat source is 2metercube then , the value to be entered for heat source should be 3000/2 =1500 . it can also happen if u didnt give air flow or u have defined all walls as adiabatic
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