Hi,
I am unclear about the forces that we save in dump file as `fy` , `fz` and `fx'.
Are they contact forces of each particle?
If not, is there a way to save contact forces for each particles?
Any help would be appreciated.
Thank you
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mschramm | Fri, 03/11/2022 - 06:46
sum of all forces
Hello,
fx, fy, and fz are the total sum of forces acting on a sphere.
Look into the compute pair/gran/local command to get only the contact force between sphere pairs.
https://www.cfdem.com/media/DEM/docu/compute_pair_gran_local.html
gibel | Tue, 03/29/2022 - 05:55
So does it include all the contact forces and normal forces?
Hello @mschramm,
Really thank you for your answer.
So total forces means, it include all the contact forces acting towards the axis and normal forces.
Am I right?
Thank you.
mschramm | Tue, 03/29/2022 - 18:59
All Forces
Hello,
fx, fy, and fz contain every force that has acted on the particle for a specific time step.
This includes the normal contact force (decomposed into its directional components)
the tangential contact force (decomposed into its directional components)
the gravitational force (decomposed into its directional components)
all wall contact forces (both normal and tangential decomposed into its directional components)
and all other forces you added to your system (rolling model, cohesion model, bond model, magnetic, drag, ...)
Kashminder | Wed, 04/06/2022 - 22:28
pairwise Interaction (Capillary forces)
I want to apply capillary forces to the particles, so that I particles attract each other. How shall I achieve that like what model shall I use? and what other properties do I need to manipulate? Any leads will be appreciated.