How to change the collision model

MFiX How to
#1

Hi,

I want to change the particle shape and update the collision model.
Someone already asked about this as follow.

Unlike the drag law, it seems there is no udf application I can reflect the new collision model.
Can someone explain how to change the collision model?
Do I need just to change the code in model\des directly and build a solver?

Thanks!

#2

Do I need just to change the code in model\des directly and build a solver?
Ans. Yes
You need to copy the .f file for the module in which you want to edit in your directory and the compile using batch command.

The easiest way is editing the collision model by skip the contact force for the defining of overlap.

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#3

Thanks! It sounds I need to do it like UDF drag model implementation.

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