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Multiphase flow with insoluble component
Posted Jul 18, 2012, 5:11 p.m. EDT Fluid & Heat, Computational Fluid Dynamics (CFD), Microfluidics Version 4.3 1 Reply
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I have some simulations working pretty well using laminar two-phase flow (level set) and transport of diluted species.
I want to watch the convection/diffusion of a species in only one phase, meaning to simulate a scenario where the species is only soluble in one of the phases. Is there a convenient way to implement this? My simulation works reasonably well and I think convection tends to contain the species pretty well, but I have some species getting into the other phase (maybe it's just via diffusion).
Ideally I could just set the diffusivity of the species in the second phase to zero, but I don't see how to do in addition to setting the diffusivity for the first phase.
I want to watch the convection/diffusion of a species in only one phase, meaning to simulate a scenario where the species is only soluble in one of the phases. Is there a convenient way to implement this? My simulation works reasonably well and I think convection tends to contain the species pretty well, but I have some species getting into the other phase (maybe it's just via diffusion).
Ideally I could just set the diffusivity of the species in the second phase to zero, but I don't see how to do in addition to setting the diffusivity for the first phase.
1 Reply Last Post Jul 19, 2012, 5:47 p.m. EDT
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Posted:
1 decade ago
A little bit of addition - Switching to phase field solved the problem of the species entering the other phase. It introduced another odd problem though where at my inlet I periodically have more of the dispersed phase appear out of no where, and grow...