When the side inlet is increased, it will diverge. Is there any way to deal with it?

MFiX
#1

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sansurejieyuanshi1.0.zip (29.5 MB)

#2

Hi Lingxaio. I’m looking at this case now.

Here’s some general advice on what to do when a run does not converge from the MFiX FAQ.

You did not include log files so I have a few extra questions:

  1. How long did you have to run before you saw the failure?

  2. Did you see the failure with the side inlet as in this file, or do I have to increase it?

  3. Do you mean increase the flow rate or the size of the inlet?

Thanks,

– Charles

#3

OK, I see the non-convergence at t=0.370454s. You are also getting some warnings about maximum inlet velocity.

Velocity exceeds limit:   75.000
in cell: I =    2   J =    6   K =    7
Epg =  0.44189     Ug =  -23.461     Vg =  -48.421     Wg =   235.22
To change the limit, adjust the scale factor MAX_INLET_VEL_FAC.
#4

Please use ideal gas law instead of constant gas density, and set a gas pressure for all ICs and BCs. It ran to completion when I did that.

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