Need directions to implement 2-way coupled eulerian lagrangian in Open FOAM

Artvandelay · March 6, 2014, 06:50

I'm new to OpenFOAM. I wish to implement an 3-d eulerian lagrangian approach to solve for the trajectory of a bubble plume in water. Bubbles being tracked by lagrangian tracking. I wish to use the eulerian flow solver that OpenFOAM offers and make some changes to the source term for the navier stokes momentum equations (thereby making the system a 2 way coupled one). Can anyone tell me if it is feasible? If there are is something of this sort already existent in OpenFOAM that I can simply build upon instead of building something from the scratch? Eagerly awaiting your replies, and thanks in advance.

Artur · May 5, 2015, 05:52

Hi Artvandelay,

I'm sorry to see that you've had no replies to your question. I'm now in a similar situation and was wondering if you have any advice on how to get started with using the Lagrangian functionality in OpenFOAM?

Thanks,

A

blais.bruno · June 2, 2015, 17:08

The CFDEM framework combines openFOAM and LIGGGHTS to achieve this kind of two-way coupled multiphase flows, but with solid particles. It might be a good starting point to consider that the bubbles are solid particles, and then instead to apply models for their growth, coalescence based on impacts, etc.

www.cfdem.com

Cheers!

Artur · June 3, 2015, 01:07

Hi,

Thanks for pointing out this very useful resource. It will take me a while to familiarise myself with it. Since I posted here I've found that the official lagrangian library has quite a few useful things already in it, although in the official solvers it gets used in a very much different context and so it's not so easy to understand perhaps. I've found this and a few similar tutorials on-line to be extremely helpful in this context:

http://www.tfd.chalmers.se/~hani/kur...aureliapdf.pdf

All the best,

A

blais.bruno · June 3, 2015, 10:21

I think the best idea is to evaluate all your options in terms of what are your needs. This will decide if you can use the lagrangian tracking in OpenFOAM, or the DPM model in OpenFOAM or the CFDEM framework, etc.

Taking a week or two to evaluate and test all options will be very helpful for you in the long run.

Cheers!
BB

March 6, 2014, 06:50	Need directions to implement 2-way coupled eulerian lagrangian in Open FOAM	#1
Artvandelay New Member Dinanath Sharma Join Date: Aug 2013 Location: India Posts: 10 Rep Power: 13	I'm new to OpenFOAM. I wish to implement an 3-d eulerian lagrangian approach to solve for the trajectory of a bubble plume in water. Bubbles being tracked by lagrangian tracking. I wish to use the eulerian flow solver that OpenFOAM offers and make some changes to the source term for the navier stokes momentum equations (thereby making the system a 2 way coupled one). Can anyone tell me if it is feasible? If there are is something of this sort already existent in OpenFOAM that I can simply build upon instead of building something from the scratch? Eagerly awaiting your replies, and thanks in advance.

June 2, 2015, 17:08		#3
blais.bruno Member Bruno Blais Join Date: Sep 2013 Location: Canada Posts: 64 Rep Power: 13	The CFDEM framework combines openFOAM and LIGGGHTS to achieve this kind of two-way coupled multiphase flows, but with solid particles. It might be a good starting point to consider that the bubbles are solid particles, and then instead to apply models for their growth, coalescence based on impacts, etc. www.cfdem.com Cheers! Artur likes this.

June 3, 2015, 10:21		#5
blais.bruno Member Bruno Blais Join Date: Sep 2013 Location: Canada Posts: 64 Rep Power: 13	I think the best idea is to evaluate all your options in terms of what are your needs. This will decide if you can use the lagrangian tracking in OpenFOAM, or the DPM model in OpenFOAM or the CFDEM framework, etc. Taking a week or two to evaluate and test all options will be very helpful for you in the long run. Cheers! BB Artur likes this.

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May 5, 2015, 05:52		#2
Artur Senior Member Artur Join Date: May 2013 Location: Southampton, UK Posts: 372 Rep Power: 20	Hi Artvandelay, I'm sorry to see that you've had no replies to your question. I'm now in a similar situation and was wondering if you have any advice on how to get started with using the Lagrangian functionality in OpenFOAM? Thanks, A

June 3, 2015, 01:07		#4
Artur Senior Member Artur Join Date: May 2013 Location: Southampton, UK Posts: 372 Rep Power: 20	Hi, Thanks for pointing out this very useful resource. It will take me a while to familiarise myself with it. Since I posted here I've found that the official lagrangian library has quite a few useful things already in it, although in the official solvers it gets used in a very much different context and so it's not so easy to understand perhaps. I've found this and a few similar tutorials on-line to be extremely helpful in this context: http://www.tfd.chalmers.se/~hani/kur...aureliapdf.pdf All the best, A