Wet particles with liquid bridging fore, cohesive powder

MFiX
#1

Hi, I want to make a simulation about wet particels. Liquid bridging force need to be considered. How can I add a cohesive model to Mfix?

#2

Please see the code related to cohesive force in the source code: calc_force_dem.f

1 Like
#3

Thanks for your answer. It would be greater if you can provide more details.

#4

Look for the sections on van der Waals forces, I’ve included an excerpt from calc_force_dem below. This will give you some understanding for how to incorporate a new cohesive force (initializing variables, performing calculations, adding them to the governing momentum balances, etc.)

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Depending on how complicated your wet cohesion model is, you will probably have to modify multiple subroutines. Notice how even for van der Waals forces, multiple subroutines are involved.
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2 Likes
#5

Thanks for your answer. I will read the code carefully and then try to modify subroutines.

#6

Hi,
I wonder how can the liquid bridging forces, in the case of wet particles, be implemented in the TFM model?

#7

Hi, Heng. I‘m working on the cohesive particle too. Have you solved your problem? Can the liquid bridge force model run in your MFiX?