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Particle deposition DPM model

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Old   August 12, 2017, 11:44
Default Particle deposition DPM model
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Yatin Suri
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Hi CFD Experts,
I am simulating a 2D rectangular case with water+solid particles injection through inlet. I'm using DPM model for this. I am trying to understand the particle deposition pattern. The idea is only fluid will pass through the outlet, but the particles will stay inside the domain.
Do you have any idea what discrete phase boundary condition I should use for the lower wall. If I select 'reflect' condition the particles will not deposit. I am not sure if I can select 'trap' ? Any suggestions are highly appreciated.
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Old   August 12, 2017, 12:39
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Adnan Sheikh
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Hi there. I guess You may use trap condition at the bottom wall and escape at the outlet, so as to understand the depostion pattern.

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Old   August 13, 2017, 07:47
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Yatin Suri
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Hi Adnan,

Thanks for the reply.
I think if I will use escape condition in the outlet, the particles reaching the outlet boundary will escape, which I don't want.

I tried using Trap condition for the lower boundary, and particles do get trapped when they reach the lower boundary, but the issue is I am unable to see those particles. It seems they have disappeared.

Any insights on how can I visualize the particles deposition? I want to see the particles as in the attached picture.

Many thanks and regards,
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dpm boundary condition, dpm fluent model, particle deposition

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