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Error of a water/air microfluidic channel

Posted May 13, 2014, 11:20 a.m. EDT 0 Replies

Kiki Chang
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Hello everyone:

I am a beginner of COMSOL, I face the problem "Repeated error test failures. May have reached a singularity.
Time : 0 Last time step is not converged."

The simulation is: all the channel walls are hydrophobic. The water flows in from the left to right. And there is a closed air chamber. I want to know how much water pressure will make the water pass through the air chamber. I just want to repeat the simulation the same as
www.ch.comsol.com/paper/drag-reduction-due-to-microbubbles-in-textured-hydrophobic-surface-12515

I run with the "normal size mesh".

Can anyone help me? Thanks!
0 Replies Last Post May 13, 2014, 11:20 a.m. EDT
COMSOL Moderator

Hello Kiki Chang

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