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Old   March 6, 2003, 10:23
Default Axisymmetric simulation
  #1
alexandre
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Hi,

I simulate a combustion in an axisymmetric domain. I use the dpm-model (solid combustion) with a mass and an energy source.

For the axisym probem, do I have to use the full particles loading or 1/(2pi), or in other words, does Fluent work with a sort of 1 rad piece of cake (or pi/4, ???) for axisym cases?

I don't find any mention of it in UG.

Thanks in advance.
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Old   March 6, 2003, 11:25
Default Re: Axisymmetric simulation
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Rahul
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Hi. If you are using axisymmetric modeling option. You just give full load based on inner and outer radius fluent will calculate required loading, Regards, Rahul
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Old   March 6, 2003, 11:32
Default Re: Axisymmetric simulation
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alexandre
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Hi,

I don't agree with you. If I have let's say 1000 particles in my case, I will certainly put less in axisym.

Fluent will probably extrapolate the load.

The question is with which factor?
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Old   March 7, 2003, 04:23
Default Re: Axisymmetric simulation
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Christian
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If the particle load is calculated in the same way as the inlet properties, then Rahul is correct.

How to define inlet properties for axisymm. is described in the Fluent manual.
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Old   March 7, 2003, 04:40
Default Re: Axisymmetric simulation
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alexandre
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I agree, but I don't have any inlet. I put n particles in the system (dpm - injection via file) at t=0.
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Old   March 7, 2003, 05:14
Default Re: Axisymmetric simulation
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Christian
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My point being that if the definitions are the same, Rahul are correct. Whether your case have an inlet or not is irrelevant. The method is the same.

So I think that if your case in real world have 1000 particles, your axisymm case should have 1000 particles (like inlet definition).

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Old   March 7, 2003, 05:31
Default Re: Axisymmetric simulation
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alexandre
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OK, I'll try to go futher to investigate it.

Thanks for your contributions.
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