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September 12, 2013, 03:34 |
heat transfer in cfx
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#1 |
New Member
AKHILESH S L
Join Date: Sep 2013
Location: Trivandrum
Posts: 29
Rep Power: 13 |
while modelling heat exchanger problem in ansys-cfx how to model the water-aluminium interface? i have modelled with thermal contact resistance. is this the correct way? actually what is the real boundary conditions for modelling a circular heat exchanger with cold water on onside and hot water on other side with aluminium as the metal between the two? can you provide a tutorial for the above problem. please help me..
thanks in advance. |
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September 12, 2013, 07:37 |
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#2 |
Senior Member
Mr CFD
Join Date: Jun 2012
Location: Britain
Posts: 361
Rep Power: 15 |
I think you can do this using thin surfaces. I think you select the hot water / cold water interface, insert a thin surface with the thermal conductivity and thickness of aluminium.
I could be mistaken as I've never actually used thin surfaces - I've only read about it. The method I've just described is computationally cheap compared to physically including a solid aluminium domain and solving for the energy equation in that domain. |
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September 12, 2013, 08:10 |
:)
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#3 |
New Member
AKHILESH S L
Join Date: Sep 2013
Location: Trivandrum
Posts: 29
Rep Power: 13 |
thank you RicochetJ for your reply...actually i am simulating a real problem in a R&D institute.....one thing is can we simulate heat-exchanger itself in Ansys-Fluent? there is a model named heat exchanger in Fluent...dats y i am asking....thanks in advance...
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September 12, 2013, 10:00 |
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#4 | |
Senior Member
Lance
Join Date: Mar 2009
Posts: 669
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Quote:
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September 17, 2013, 02:50 |
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#5 |
New Member
David Lopez
Join Date: Dec 2012
Location: Venezuela
Posts: 9
Rep Power: 14 |
I simulate a heat exchanger in the program CFX.
my email is davidrlc89@gmail.com. I did three domains, two fluids (internal and annular) and one solid (pipe) and a domain interface, active heat transfer. It's simple really. |
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September 17, 2013, 05:12 |
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#6 | |
New Member
AKHILESH S L
Join Date: Sep 2013
Location: Trivandrum
Posts: 29
Rep Power: 13 |
Quote:
thanks in advance .. |
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Tags |
ansys-cfx, heat exchanger model, heat transfer modelling |
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