Simulations of droplet size distributions, liquid-liquid stirred tanks by OpenFOAM

sharonyue · December 29, 2016, 19:31

Hello guys,

This year we did lots of simulations about the liquid-liquid dispersions in stirred tanks. We employed the semi-conservative two fluid model (implemented in OpenFOAM-2.2.x) and the Quadrature based method of moments to predict the droplet size distribution (DSD).

Results:

Our results show that the predicted DSD agrees well with the experiments. However, we notice that the predicted Power number by the turbulent model is under-estimated. This comes from the standard k-epsilon turbulence model. This under-estimation is reported extensively in other literature as well. For now we apply a kind of correction on the turbulent energy dissipation rate to handle the problem.

For those who are using OpenFOAM to simulate liquid-liquid dispersions, you can check these two papers:

AIChE Journal:
http://onlinelibrary.wiley.com/doi/1...aic.15557/full
Chemical Engineering Science:
http://www.sciencedirect.com/science...09250915007642

Now I am investigating the bubble column with the face-based momentum algorithm employing the fully-conservative phase momentum equations. Any comments are welcomed!

Best,

Andrea1984 · October 22, 2019, 09:04

Hi Dongyue,

this is a very interesting work! Is the the implementation of your model in OpenFOAM freely available by any chance?

Cheers,
Andrea

sharonyue · February 8, 2020, 23:36

Quote:

Originally Posted by Andrea1984

Hi Dongyue,

this is a very interesting work! Is the the implementation of your model in OpenFOAM freely available by any chance?

Cheers,
Andrea

Hi Andrew,

Please see this work for our open source code.
https://www.sciencedirect.com/scienc...10465519303728

Best,
Dongyue

Andrea1984 · February 9, 2020, 07:27

Great, thanks Dongyue.

December 29, 2016, 19:31	Simulations of droplet size distributions, liquid-liquid stirred tanks by OpenFOAM	#1
sharonyue Senior Member Dongyue Li Join Date: Jun 2012 Location: Beijing, China Posts: 866 Rep Power: 19	Hello guys, This year we did lots of simulations about the liquid-liquid dispersions in stirred tanks. We employed the semi-conservative two fluid model (implemented in OpenFOAM-2.2.x) and the Quadrature based method of moments to predict the droplet size distribution (DSD). Results: Our results show that the predicted DSD agrees well with the experiments. However, we notice that the predicted Power number by the turbulent model is under-estimated. This comes from the standard k-epsilon turbulence model. This under-estimation is reported extensively in other literature as well. For now we apply a kind of correction on the turbulent energy dissipation rate to handle the problem. For those who are using OpenFOAM to simulate liquid-liquid dispersions, you can check these two papers: AIChE Journal: http://onlinelibrary.wiley.com/doi/1...aic.15557/full Chemical Engineering Science: http://www.sciencedirect.com/science...09250915007642 Now I am investigating the bubble column with the face-based momentum algorithm employing the fully-conservative phase momentum equations. Any comments are welcomed! Best, Tobi, Andrea1984, BlnPhoenix and 2 others like this. __________________ My OpenFOAM algorithm website: http://dyfluid.com By far the largest Chinese CFD-based forum: http://www.cfd-china.com/category/6/openfoam We provide lots of clusters to Chinese customers, and we are considering to do business overseas: http://dyfluid.com/DMCmodel.html

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October 22, 2019, 09:04		#2
Andrea1984 Senior Member Andrea Join Date: Feb 2012 Location: Leeds, UK Posts: 179 Rep Power: 17	Hi Dongyue, this is a very interesting work! Is the the implementation of your model in OpenFOAM freely available by any chance? Cheers, Andrea

February 9, 2020, 07:27		#4
Andrea1984 Senior Member Andrea Join Date: Feb 2012 Location: Leeds, UK Posts: 179 Rep Power: 17	Great, thanks Dongyue.