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electrospray simulation

Posted Aug 25, 2011, 6:15 p.m. EDT Low-Frequency Electromagnetics, Fluid & Heat, Microfluidics 5 Replies

David Chauvin
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Hi,

I'm trying to simulate an electrospray experiment using comsol 4.1 in order to see the formation of droplets leaving a needle to a plate. A high voltage is applied on the needle and the plate is connected to the ground.
So, normally, thanks to the electrostatic force, some droplets or jets should leave the needle to the plate.

I'm using electrostatic and laminar two phase flow phase field physics linked by the maxwell stress tensor. This was inspired by the 'separation through electrocoalescence' model on the Comsol documentation.

My issue is that, even if Comsol doesn't see any errors when i'm running my program, I can't have proper results.

I enclose my Comsol program if anyone wants to help me in my issue.

Thanks in advance,

david

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5 Replies Last Post May 23, 2014, 3:59 a.m. EDT
David Chauvin
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Posted: 1 decade ago Aug 26, 2011, 4:01 p.m. EDT

And anyway, is it possible in finite elements, to dissociate a liquid into 2 liquid by some forces?
isn't that an impossible issue to solve in finite elements?
Thanks in advance,
David
And anyway, is it possible in finite elements, to dissociate a liquid into 2 liquid by some forces? isn't that an impossible issue to solve in finite elements? Thanks in advance, David
David Chauvin
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Posted: 1 decade ago Aug 29, 2011, 12:02 p.m. EDT

Or can my problem be due to a bad condition number in my matrix?
Thanks in advance.
Or can my problem be due to a bad condition number in my matrix? Thanks in advance.
Karla Gonzalez
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Posted: 1 decade ago Jan 17, 2013, 11:20 p.m. EST
Hi David,

I am also trying to simulate an electrospray experiment and was wondering if you ever solved the issues you were having with your simulation.

Thanks in advance,

Karla
Hi David, I am also trying to simulate an electrospray experiment and was wondering if you ever solved the issues you were having with your simulation. Thanks in advance, Karla
Osameh Ghazian
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Posted: 1 decade ago Jul 13, 2013, 9:35 a.m. EDT
Your initial values for the fluid part of the problem is wrong, both of them are referred to one fluid.
Your initial values for the fluid part of the problem is wrong, both of them are referred to one fluid.
Mayank Jain
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Posted: 1 decade ago May 23, 2014, 3:59 a.m. EDT
I am also trying to simulate the same problem. Did u solved the issues u had in the problem

Thanks in advance
Mayank Jain
I am also trying to simulate the same problem. Did u solved the issues u had in the problem Thanks in advance Mayank Jain

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