How to set outlet boundary conditions in GUI interface to allow only gas to pass through?

MFiX How to
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#1

Dear researchers, as a new software user, I would like to ask for your help. In the CFD-DEM simulation I want to apply to a fluidized bed simulation, I want to set constraints at the fluidized bed outlet so that only gas is allowed to flow out. I tried to set the outlet to mixed boundary conditions, but some particles still flowed out. Do you know how to implement this process in the GUI interface? Thank you very much

#2

Hi Gong, welcome to the MFiX forum

If you are seeking help here, we ask that you upload your project files. You can go to the main menu, select “Submit bug report” and create a ZIP file of your project, which can be uploaded here, and someone will take a look.

Thanks,

– Charles

#3

Is the outlet a PO (pressure outlet) boundary condition?
If yes, there is a keyword named: BC_PO_APPLY_TO_DES that can control it.

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#5

I am very glad to get your help, since I just started to use this software and use GUI more, I will try this method in the code, thanks again.