heat transfer via convection or radiation

Submitted by davidf on Fri, 04/29/2011 - 00:08

Hey liggghts users !

I was wondering if there is any option to model heat transfer
between particles that originates from radiation or convection, rather than
having the particles in physical contact to exchange heat (conduction).

Any ideas as to how to include radiative or convective heat transfer ?

Thanks !
David

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ckloss's picture

ckloss | Fri, 04/29/2011 - 07:46

Hi David,

convection is not so complicated, and is to come over the next weeks in the frame of the CFD-DEM coupling...
As for radiation, it's a bit more complicated, and there is (at least currently) nobody from us working on implementing this.
I would do that with raytracing, where a couple rays are started from particle surfaces and you track which particle they hit. A neighbor list approach for this would be easiest but only work for dense regimes. There might be other options, but parallelization will be a bit tricky.

Christoph