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Cross Flow cooling system involving multiple fluids and a solid domain

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Old   June 15, 2010, 23:09
Default Cross Flow cooling system involving multiple fluids and a solid domain
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Ajay Menon
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Hello,

I am trying to perform a conjugate heat transfer analysis of a simple cross flow cooling system consisting of a single pipe carrying hot fluid.This pipe-fluid system is cooled by forced convection by air flowing over the pipe. I have gone through the tutorial on CHT of heating coil , but it contains a single fluid domain and a single solid domain. How can I model a CHT transfer such as the one that I described where 2 fluids seperated by a solid domain is involved?

Do I need to perform a multiphase analysis here, because CFX just allows me to define one fluid model for both fluid domains or is there a way I can specify seperate fluid models for the 2 fluid domains in my problem?

Any help in modelling this problem is appreciated?

Thank You
Ajay
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Old   June 16, 2010, 08:21
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Glenn Horrocks
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This can be done without requiring multiphase. You have to use the "disallow constant domain physics" option or something like that - search the forum for it, there are a few posts on it.
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Old   June 16, 2010, 17:09
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Ajay Menon
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Thank You Glenn
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Old   March 8, 2012, 04:05
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Ali Emadi
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Dear Ajay
I have exactly the same problem in modelling a heating device. have your problem solved?
I searched the forum for "disallow constant domain physics" but nothing exist.
Thanks
Ali
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Old   March 8, 2012, 18:00
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Modelling a problem with to different Fluids
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conjugate heat transfer, crossflow cooling, multi domain

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