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Variable Definitions in Darcy's Law and Heat Transfer in 4.3
Posted 2012年5月31日 GMT-4 16:02 Heat Transfer & Phase Change, Porous Media Flow Version 3.5a, Version 4.3 0 Replies
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I'm just starting to work with COMSOL 4.3, and trying to run a model simulation that I used in 3.5a. The model is of an evaporator, and uses Darcy's Law and the Heat Transfer (Convection and Conduction) modules. One of the boundary conditions I set is the flow velocity of some liquid that evaporates off a surface into a channel. The velocity of the liquid would then be defined by:
U = (normal conductive heat flux/latent heat*density)
Or in Comsol 3.5a terms, it is set as a boundary condition in the Darcy's Law:
U = (ndflux_T_chcc/hfg/densityliq)
When I import this model into 4.3 and try to solve it, I was told that the ndflux_T_chcc does not exist. After looking at the documentation, it appears that this variable has been replaced by the equivalent 'ndflux'. But after changing this, I'm still having some problems. Should this be the fix, or is there something else I am doing wrong?
Thanks,
Nick
Hello Nicholas Roche
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