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February 5, 2020, 11:36 |
Flotation cell study
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#1 |
New Member
Pablo
Join Date: Feb 2020
Location: Santiago de Chile
Posts: 8
Rep Power: 6 |
Dear sirs,
I'm beginning a CFD study of flotation cells used in mining industry. To simulate the dynamic behavior of that cells I need to work under the following characteristics: - Turbulent model (RAS for now... maybe LES in the future if its necessary). - Dynamic mesh to simulate the rotor movement. - Free surface (slurry-air interface, but can be water-air for now) because I need to simulate the vortex in the center of the cell (near the rotor zone, like a mixer). - Bubbles behavior in a future work (maybe with bubbleFoam). So, for now 02/05/2020 (MM/DD/YY), I would like to know if a similar tutorial for OpenFOAM exists to begin the study with it. The most similar tutorial I've found is the following: https://openfoam.com/documentation/g...ating-fan.html Regards, Pablo. |
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February 6, 2020, 15:41 |
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#2 |
New Member
Pablo
Join Date: Feb 2020
Location: Santiago de Chile
Posts: 8
Rep Power: 6 |
Hi everyone;
I've found an appropiate tutorial case for OpenFOAM v7 in /opt/openfoam7/tutorials/multiphase/interFoam/RAS/mixerVesselAMI As the name says, it is a mixer vessel simulation which uses an Arbitrary Mesh Interface (AMI: rotatory mesh field). I'm interested in the behavior of the air-fluid interface. The simulation of the vortex is an important phenomena for my study. I understand that without the surface tension simulation it's impossible to form a bubble (also because I would need an incredible refined mesh for that). So, I pretend in the near future to add some single bubbles to the simulation to study this phenomena. I supposed that I can made it using bubbleFoam. The problem is very CPU expensive (solved in parallel with 16 cores). Even for an i9-9900k. It takes about 5 hours to simulate the vanilla problem. Tomorrow I going to change the vanilla geometry for the geometry of a flotation cell and see what happens. Regards, Pablo. |
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October 13, 2021, 01:04 |
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#3 | |
Member
cfd Engineer
Join Date: Sep 2014
Location: Banaglore
Posts: 30
Rep Power: 12 |
Quote:
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Tags |
dynamic mesh;, free surface model, turbulent flow |
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