How to simulate dilute solid particles in gas flow?

chpjz0391 · March 22, 2016, 04:29

Hi there
Sorry to ask such a general question but I'm really lost.
I want to simulate solid particles in a gas flow. The particles are so small and the concentration is quite low, it's about several mg/m3.

In my simulation. the particles flow(diesel particulate matter) is emitted by a diesel engine into an underground tunnel at a constant velocity. And the concentration in the tunnel is quite low.So it's a kind of dilute solid particle flow. The gas flow carries the particles along. I need to simulate the concentration distribution ,the collision of the particle flow.

At first, I was trying to use DPMFoam or MPPICFoam, but I found these two solvers are only suiting for dense particles flow. For such dilute solid particles, which solver should I use?

Thanks very much.

chpjz0391 · March 22, 2016, 04:47

How about the coalChemistryFoam? I can turn off the chemistry reaction.

mnikku · March 22, 2016, 07:48

Isn't there a dieselFoam solver available in openfoam-extended? Maybe this is something that would suit your needs?
https://openfoamwiki.net/index.php/Contrib_dieselFoam

chpjz0391 · March 22, 2016, 20:31

Thanks for ur reply, honestly ,I am a beginner to OpenFoam, I did not find this DieselFoam in version3.0. And the diesel particles which I simulate is incompressible flow, Is DieselFoam able to simulate the incompressible flow, and I just need to simulate the distribution of particles and track the particles. My simulation needn't to simulate the combustion and other chemistry reaction. Could dieselFoam achieve my goal ?

Thank you

chpjz0391 · March 22, 2016, 20:32

Quote:

Originally Posted by mnikku

Isn't there a dieselFoam solver available in openfoam-extended? Maybe this is something that would suit your needs?
https://openfoamwiki.net/index.php/Contrib_dieselFoam

Thanks for ur reply, honestly ,I am a beginner to OpenFoam, I did not find this DieselFoam in version3.0. And the diesel particles which I simulate is incompressible flow, Is DieselFoam able to simulate the incompressible flow, and I just need to simulate the distribution of particles and track the particles. My simulation needn't to simulate the combustion and other chemistry reaction. Could dieselFoam achieve my goal ?

Thank you

March 22, 2016, 04:29	How to simulate dilute solid particles in gas flow?	#1
chpjz0391 Member Ping Chang Join Date: Feb 2016 Location: Perth Posts: 93 Rep Power: 10	Hi there Sorry to ask such a general question but I'm really lost. I want to simulate solid particles in a gas flow. The particles are so small and the concentration is quite low, it's about several mg/m3. In my simulation. the particles flow(diesel particulate matter) is emitted by a diesel engine into an underground tunnel at a constant velocity. And the concentration in the tunnel is quite low.So it's a kind of dilute solid particle flow. The gas flow carries the particles along. I need to simulate the concentration distribution ,the collision of the particle flow. At first, I was trying to use DPMFoam or MPPICFoam, but I found these two solvers are only suiting for dense particles flow. For such dilute solid particles, which solver should I use? Thanks very much.

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March 22, 2016, 04:47		#2
chpjz0391 Member Ping Chang Join Date: Feb 2016 Location: Perth Posts: 93 Rep Power: 10	How about the coalChemistryFoam? I can turn off the chemistry reaction.

March 22, 2016, 07:48		#3
mnikku Member Join Date: May 2015 Posts: 34 Rep Power: 11	Isn't there a dieselFoam solver available in openfoam-extended? Maybe this is something that would suit your needs? https://openfoamwiki.net/index.php/Contrib_dieselFoam

March 22, 2016, 20:31		#4
chpjz0391 Member Ping Chang Join Date: Feb 2016 Location: Perth Posts: 93 Rep Power: 10	Thanks for ur reply, honestly ,I am a beginner to OpenFoam, I did not find this DieselFoam in version3.0. And the diesel particles which I simulate is incompressible flow, Is DieselFoam able to simulate the incompressible flow, and I just need to simulate the distribution of particles and track the particles. My simulation needn't to simulate the combustion and other chemistry reaction. Could dieselFoam achieve my goal ? Thank you