BC error with TFM by MFIX-19.1.0

MFiX How to
#1

Hi MFIX group,
I run TFM for a liquid-solid system with the BC setting like this

BC%E2%80%94%E2%80%94MFIX
BC%E2%80%94%E2%80%94MFIX1200×174 27.9 KB

The solver of MFIX-18.1.1 could run mfix.dat successfuly. But when I tried it with MFIX-19.1.0, the error appeared:
BCErrors
BCErrors1511×808 221 KB

So there is something different for BC setting between these two versions? Thank you.

#2

can you post your *.mfx file?

#3

You shouldn’t be using J/J boundary conditions with cut cells. This use isn’t supported.

#4

Thank you. I have tried the BC setting without JJ boundary condition in case of cut-cell. It works.

#5

Hi Justin, I have solved this problem. Thank you.

#6

But for MFIX-18.1.0, I can set FSW BC with JJ BC when using cut cells for TFM simulation. MFIX-19.1.0 does not support this again.

#7

In any official version of MFiX, JJ boundary has not been implemented for cut-cell yet. Even you put all those key words (that work for regular cell) there, they do not have any effect.

#8

Thank you for telling me this, Gaoxi.