|December 29, 2016, 19:31||
Simulations of droplet size distributions, liquid-liquid stirred tanks by OpenFOAM
Join Date: Jun 2012
Location: Torino, Italy
Posts: 750Rep Power: 9
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).
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:
Chemical Engineering Science:
Now I am investigating the bubble column with the face-based momentum algorithm employing the fully-conservative phase momentum equations. Any comments are welcomed!
Im the translator of OpenFOAM User Guide Chinese Edition! But always newbie on CFD.
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