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May 3, 2012, 07:08 |
Heat Transfer
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#1 |
Senior Member
Join Date: Mar 2011
Posts: 158
Rep Power: 15 |
Hi there,
I have studied the turorials heatedfin and dualstreamHE already. But I still don't know how to set up the interface between a solid and a fluid region. The simulation should calculate the heat transfer coefficients from the simulated velocity and temperature values. I have created the Interfaces already. In the directory "Boundaries" I can choose a Thermal Specification (Interface-Boundary -> Physical Conditions). I'm not sure which method to choose. Description of my case: - I have 3 physics continua. 2 Fluids and 1 Solid which is located between the Fluids. I want to set up the case with the inlet temperature and velocity values. The temperature field, local heat transfer values, outlet temperature and velocity values should be calculated. -> I'm not sure which method to choose: - adiabatic and heat flux doesn't make sense. - the method convection asks for heat transfer coefficients, thus it also doesn't make sense to choose this method. -> The only method left is "temperature". But here I must specify a static temperature. What is this static temperature? I havn't found a satisfying explanation in the User Guide. Maybe someone can help me. Best Regards, tH3f0rC3 |
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May 3, 2012, 09:55 |
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#2 |
New Member
MadhuVC
Join Date: Feb 2011
Posts: 28
Rep Power: 15 |
http://www.cfd-online.com/Forums/sta...ation-cht.html
Abdul has given a detailed explanation in that post... |
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May 3, 2012, 10:11 |
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#3 |
Senior Member
Join Date: Mar 2011
Posts: 158
Rep Power: 15 |
Thank you for your reply.
But I already know that you can either model several bodies with Interfaces between them or one body with boundary conditions (temperature, heat flux,...). I'm not sure how to set up the case with several bodies. The tutorial heated_fin uses the method "temperature" as thermal specification on the interfaces. But I don't know what is meant with "static temperature"! Is it the temperature on the interface? The other methods (heat flux, adiabatic and convection) are not useful for my case. Best regards, tH3f0rC3 |
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May 3, 2012, 11:26 |
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#4 | |
Senior Member
Ryne Whitehill
Join Date: Aug 2009
Posts: 312
Rep Power: 18 |
Quote:
The boundary conditions are for surfaces that do not have an interface. |
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May 3, 2012, 12:11 |
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#5 |
Senior Member
Join Date: Mar 2011
Posts: 158
Rep Power: 15 |
Thanks for your answer.
I know and I don't want to set a boundary condition. But what shall I do with the Thermal Specification (Interface-Boundary -> Physical Conditions) in the directory "Boundaries"? Obviously it is necessary to choose any method. This is the problem I have. Best Regards, tH3f0rC3 |
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May 3, 2012, 12:42 |
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#6 | |
Senior Member
Ryne Whitehill
Join Date: Aug 2009
Posts: 312
Rep Power: 18 |
Quote:
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May 3, 2012, 13:09 |
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#7 |
Senior Member
Join Date: Mar 2011
Posts: 158
Rep Power: 15 |
Ah, now it is clear!
Thank you! |
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