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Problem with moving mesh in multiphase flow

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I'm aiming to simulate the 2 phase flow of a droplet dispersed in a continuous phase flowing down a channel. My end goal is to combine convective mixing within the droplet (circulation from the fluid-fluid interface) and diffusion to get a sense for how long it takes for a droplet to become thoroughly mixed.

I broke my problem down pretty simply to start. Right now I'm working on a 2D system with a droplet starting atthe beginning of the channel and hoping to visualize the velocity field (see the circulation occur) as it flows down the channel. I'm having a problem though as I run the simulation where I get many "inverted mesh element" errors and I haven't found much direction from searching about that error.

The simulation seems to start well but then hits a brick wall (I assume when the first of the errors occurs). Any tips?


1 Reply Last Post 25 ott 2011, 09:38 GMT-4
Lechoslaw Krolikowski

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Posted: 1 decade ago 25 ott 2011, 09:38 GMT-4
The fixed mesh methods (Level Set, Phase Field) are better suited to flowing droplet problems then the moving mesh method.
The fixed mesh methods (Level Set, Phase Field) are better suited to flowing droplet problems then the moving mesh method.

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