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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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defining temperature of inlet fluid?

Posted 16.01.2014, 13:20 GMT-5 Fluid & Heat, Heat Transfer & Phase Change Version 4.4 3 Replies

David Segal
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Hi

How do I inject a fluid with a required temperature through an inlet?

Obviously it's temperature needs to be different from the initial fluid in the model .

thanks

Dave
3 Replies Last Post 27.01.2014, 04:20 GMT-5
Tillmann Buttersack
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Posted: 1 decade ago 17.01.2014, 12:13 GMT-5
rightclick at the heat transfermodule and add "+Temperature" choose your bondary and set a temperature
rightclick at the heat transfermodule and add "+Temperature" choose your bondary and set a temperature
David Segal
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Posted: 1 decade ago 17.01.2014, 16:06 GMT-5
Hi

OK I found that it works using the Conjugate Heat Transfer module, see Heat Sink model example.

In this model fluid (laminar flow) is introduced through the inlet at a predefined temperature.

I tried doing this with the multiphysics heat transfer module +laminar flow without success.

Can someone confirm that is only possible with Conjugate Heat Transfer ?

Thanks

David
Hi OK I found that it works using the Conjugate Heat Transfer module, see Heat Sink model example. In this model fluid (laminar flow) is introduced through the inlet at a predefined temperature. I tried doing this with the multiphysics heat transfer module +laminar flow without success. Can someone confirm that is only possible with Conjugate Heat Transfer ? Thanks David
Marino Miccio
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Posted: 1 decade ago 27.01.2014, 04:20 GMT-5
Hi David,

your problem is very strange.
You need only to define a boundary condition for the temperature. It should be possible in all the heat transfer modules.
try to post your file, I will check!

--
Marino Miccio
Chemical Engineer
marinomiccio.wix.com/home
Hi David, your problem is very strange. You need only to define a boundary condition for the temperature. It should be possible in all the heat transfer modules. try to post your file, I will check! -- Marino Miccio Chemical Engineer http://marinomiccio.wix.com/home

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