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Conduction and Convection

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Old   November 29, 2006, 00:47
Default Conduction and Convection
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Radhika
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Hi

I am trying to model conduction in the duct walls, free convection on the surface and fluid flow inside the duct. How do I specify the conduction and convection on the duct. Can that be specified in boundary conditions?

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Old   November 29, 2006, 08:26
Default Re: Conduction and Convection
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PETE
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This is conjugate heat transfer problem ->you need solid cells, probably you can estimate the natural convective heat flux and use a wall-flux bc
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Old   November 30, 2006, 16:06
Default Re: Conduction and Convection
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julien caradonna
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Hi, you have to activate the option buoyancy on. Then you enforce a wall boundary condition on the duct surface with conductivity option.
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