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Convergence problem

Posted Oct 8, 2021, 6:24 p.m. EDT 2 Replies

An p
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Hello,

I am trying to simulate the water-air bubble (turbulence) flow. My model works fine for certain velocity (lower velocity) however, when I try running the simulation with higher velocity I get the convergence issue. Can anyone suggest me what could me the issue?

2 Replies Last Post Nov 30, 2021, 2:00 p.m. EST
Amin Kazemi Postdoctoral Researcher, University of Toronto
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Posted: 3 years ago Oct 30, 2021, 11:46 a.m. EDT

You have not provided enough detail of your model. However, one way to tackle this problem is to use the solution of the lower velocities as the initial condition for the higher velocities.

You have not provided enough detail of your model. However, one way to tackle this problem is to use the solution of the lower velocities as the initial condition for the higher velocities.
An p
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Posted: 3 years ago Nov 30, 2021, 2:00 p.m. EST

Hello Amin, I was using bubbly flow but I think this model only works when the volume fraction of the dispersed phase is low. Use of mixture model solved the issue.

Hello Amin, I was using bubbly flow but I think this model only works when the volume fraction of the dispersed phase is low. Use of mixture model solved the issue.

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