Calculation of torque and forces between particles in screw feeder

Submitted by Dheeraj420 on Sun, 08/11/2019 - 08:33

Hi everyone,

I am solving a problem to predict the flow behavior of particles in screw feeder. The output of the code provide these values.

dump dmp all custom 1000 dump.screw id type type x y z vx vy vz fx fy fz omegax omegay omegaz radius.

In this what exactly is fx fy and fz ?? and if I want to compute the forces and torque in tangential and normal direction , how will i compute??

fix mixer all wall/gran model hertz tangential history rolling_friction cdt mesh n_meshes 2 meshes cad1 cad2
pair_style gran model hertz tangential history rolling_friction cdt

I am using this commands for defining the physics.

I am new to LIGGGHTS.

Thanks in advance.

Regards
Dheeraj