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Problem with moving mesh in multiphase flow
Posted 24 oct. 2011, 17:13 UTC−4 Fluid & Heat, Computational Fluid Dynamics (CFD), Mesh Version 4.2 1 Reply
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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?
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?
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1 Reply Last Post 25 oct. 2011, 09:38 UTC−4
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Posted:
1 decade ago
The fixed mesh methods (Level Set, Phase Field) are better suited to flowing droplet problems then the moving mesh method.