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April 5, 2015, 15:31 |
Lagrangian particle Track
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#1 |
Member
iman vasefi
Join Date: Aug 2010
Posts: 39
Rep Power: 16 |
Dear Foamers
I want to simulate the particle track in a steady incompressible flow and I want to consider two way coupling between particles and base fluid by adding different forces such as lift,drag and Brownian. could you help me which solver is appropriate for this lagrangian particle track? thank you in advance |
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June 2, 2016, 21:39 |
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#2 | |
Member
Ping Chang
Join Date: Feb 2016
Location: Perth
Posts: 93
Rep Power: 10 |
Quote:
I think DPMFoam could meet your requirement. Cheers. |
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June 3, 2016, 01:46 |
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#3 |
Member
Bijan Darbari
Join Date: Nov 2015
Posts: 48
Rep Power: 10 |
Dear elah599
you can use "dpmfoam" solver. but this solver don't solve heat transfer equation. so the brownian force can't be acitvated. If you want to solve heat transfer equation and brownian force, use "reactingparcelfoam" and deactivate combustion, chemistry, evapoartion,... to solve a two way lagrangian solid particle with eulerian single phase fluid. If you have more questions ask me! |
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June 3, 2016, 07:35 |
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#4 | |
Member
Evangelos
Join Date: Sep 2011
Posts: 87
Rep Power: 14 |
I think that brownian force doesn't work as is supposed.
It seems the brownian force overcomes the paramagnetic force and this is not true. Under the magnetic force the magnetic nanoparticles are formed into chains. With the brownian force activated the particles are moving very fast and the magnetic force seems not to affect at all the particles. Many of these are are lost after some iterations. Quote:
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June 3, 2016, 12:46 |
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#5 | |
Member
Ping Chang
Join Date: Feb 2016
Location: Perth
Posts: 93
Rep Power: 10 |
Quote:
The reactingparcelFoam cannot simulate incompressible fluid and the collision between particles . And the DOMFoam cannot solve the dilute phase I think. |
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June 3, 2016, 14:56 |
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#6 | |
Member
Bijan Darbari
Join Date: Nov 2015
Posts: 48
Rep Power: 10 |
Dear chpjz0391
Quote:
the "dpmfoam" can solve flow with high concentration of particles but I think there is not any problem with dilute flow of particles. both "reactingparcelfoam" and "dpmfoam" use the same particle track class and the difference is submodels and eulerian phase equations. |
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June 3, 2016, 19:30 |
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#7 | |
Member
Ping Chang
Join Date: Feb 2016
Location: Perth
Posts: 93
Rep Power: 10 |
Quote:
Thanks for your reply. I will use the DPMForm to simulate the dilute particle phase and then compare the result with the reactingparcelFoam . |
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