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stirred tank reactor

Posted 6 sept. 2016, 04:27 UTC−4 Version 4.3a 1 Reply

Ravi Kumar Garikina
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Hi,
I am trying to model a bio-reactor in COMSOL, in the reactor how can I model the breakage and coalescence of air bubbles. Which physics should I use which takes this into consideration?
Kindly help me out with this.

Regards,
Ravi
1 Reply Last Post 8 nov. 2016, 09:41 UTC−5
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Hello Ravi Kumar Garikina

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Allan
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Posted: 8 years ago 8 nov. 2016, 09:41 UTC−5
Hi Ravi

First, you have to use a rotational machinery physics, tanks are agitated and you can work in 3D. I recommend you use swept meshes. Then you calculate the flow. Using that solution, I've never tried it but, you can use a Euler-Euler mixture physics, and I suppose you can use a MATLAB code to model coalescence and breakage, this is difficult. You can find papers on the internet that model coalescence and breakage.

Good luck.
Hi Ravi First, you have to use a rotational machinery physics, tanks are agitated and you can work in 3D. I recommend you use swept meshes. Then you calculate the flow. Using that solution, I've never tried it but, you can use a Euler-Euler mixture physics, and I suppose you can use a MATLAB code to model coalescence and breakage, this is difficult. You can find papers on the internet that model coalescence and breakage. Good luck.

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