Add some particles to OpenFOAM simulation and track their path

meth · February 19, 2019, 02:44

Dear Foamers,

I want to add some particles to my flow past sphere simulations and track their path. So, I can have a clear picture of what happens in the wake behind the sphere. I have never done particle tracking before. I am using my own flow solver, and I want to add the particle tracking part to it. Can you please guide me? Which solver will be the most appropriate for my case?

It seems that I have to use a Lagrangian solver with a particle could. But, there are many lagrangian solvers, and I am confused about which one to use.

It's better if you can direct me with some simple tutorials.

Thank you.

Cheers!

Methma

Micke · February 19, 2019, 07:30

Hi,
as you have already seen, there are different particle solvers. The selection depends on the particle concentration in the flow.
Low concentration: 1-Way-Coupling sufficient (icoUncoupledKinematicParcelFoam). The velocity profile is frozen. Only the fluid has an effect on the particles.

If you have a higher concentration you can choose between MPPICFoam or DPMFoam. Depending on the setting, these solvers take Two-Way-Coupling(particle-flow interaction) or Four-Way-Coupling(particle-particle interaction) into account.

Start with IcoUncoupledkinematicParcelFoam. Should be fine in your case.

RobertHB · February 19, 2019, 08:39

Have you considered using paraviews streamline filter instead of adding particles for pathline tracking? To me it sounds like this would get you the results you are looking for.

February 19, 2019, 02:44	Add some particles to OpenFOAM simulation and track their path	#1
meth Member methma Rajamuni Join Date: Jul 2015 Location: Victoria, Australia Posts: 40 Rep Power: 11	Dear Foamers, I want to add some particles to my flow past sphere simulations and track their path. So, I can have a clear picture of what happens in the wake behind the sphere. I have never done particle tracking before. I am using my own flow solver, and I want to add the particle tracking part to it. Can you please guide me? Which solver will be the most appropriate for my case? It seems that I have to use a Lagrangian solver with a particle could. But, there are many lagrangian solvers, and I am confused about which one to use. It's better if you can direct me with some simple tutorials. Thank you. Cheers! Methma

February 19, 2019, 08:39		#3
RobertHB Senior Member Robert Join Date: May 2015 Location: Bremen, GER Posts: 292 Rep Power: 12	Have you considered using paraviews streamline filter instead of adding particles for pathline tracking? To me it sounds like this would get you the results you are looking for. __________________ If you liked my answer to your question, please consider leaving a "Like" in return

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February 19, 2019, 07:30		#2
Micke New Member Join Date: Nov 2017 Posts: 1 Rep Power: 0	Hi, as you have already seen, there are different particle solvers. The selection depends on the particle concentration in the flow. Low concentration: 1-Way-Coupling sufficient (icoUncoupledKinematicParcelFoam). The velocity profile is frozen. Only the fluid has an effect on the particles. If you have a higher concentration you can choose between MPPICFoam or DPMFoam. Depending on the setting, these solvers take Two-Way-Coupling(particle-flow interaction) or Four-Way-Coupling(particle-particle interaction) into account. Start with IcoUncoupledkinematicParcelFoam. Should be fine in your case.