Hi,
I am looking for a worked example in Elmer for modelling drying processes for foods or paper products.
THere are a number of papers discussing this process, using standard equations for heat transfer and Ficks Law for difusion.
Are there any worked examples on this topic giving a starting point for coupling the equations ?
The diffusion rate is a function of temperature, and the diffusion kinetics can be a function of both temperature and moisture, so tight coupling is needed.
Any help with pointers or examples appreciated.
Regards,
Nick
Combined Heat Transfer / Moisture Diffusion for Drying
Re: Combined Heat Transfer / Moisture Diffusion for Drying
A couple of papers giving examples of this analysis are attached
http://cds.comsol.com/access/dl/papers/1699/Curcio.pdf
http://www.feq.unicamp.br/~ids2004/volB ... 3-1270.pdf
http://cds.comsol.com/access/dl/papers/1699/Curcio.pdf
http://www.feq.unicamp.br/~ids2004/volB ... 3-1270.pdf
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Re: Combined Heat Transfer / Moisture Diffusion for Drying
Hi Nick,
to my knowledge there is no ready-made examples in this area. Quickly browsing through the equations the setup should be reproducable with Elmer. You need FlowSolver, HeatSolver and AdvectionDiffusionSolver with perhaps some user defined MATC definitions on how the material parameters depend on the water content. We'll try to make more multiphysics tutorials in the future to better demonstrate how to work with number of bodies with different solvers.
-Peter
to my knowledge there is no ready-made examples in this area. Quickly browsing through the equations the setup should be reproducable with Elmer. You need FlowSolver, HeatSolver and AdvectionDiffusionSolver with perhaps some user defined MATC definitions on how the material parameters depend on the water content. We'll try to make more multiphysics tutorials in the future to better demonstrate how to work with number of bodies with different solvers.
-Peter