Mismatch in standard constant rolling torque model in Mfix DEM

MFiX
1

Hello,

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In the fortran code, I have seen the rolling torque is written in terms of diameter (2*R) while the standard constant rolling torque model is written in terms of radius (R).

Screenshot_20251013-083738_Chrome
Screenshot_20251013-083738_Chrome1080×222 16 KB

By inputing only rolling friction coefficient, will the simulation be wrong?

Before inputing, do I need to divide the rolling friction coefficient by 2 to match the standard rolling torque equation?

Thanks.

2

Hello,

Can anyone clarify me whether I have to change the rolling torque equation in the fortran code?

Thanks.