Determine velocity at different positions on a chute

Submitted by Detlef Jensen on Tue, 02/12/2013 - 13:26

Hello,

I simulate a chute for sortimg machines. I am interested in the behaviour of the objects to sort especially the velocity vector of the particels at different points of the chute. Particular importance concerns to the point the objects are leaving the chute.

Is there a solution in LIGGGHTS to solve my problem.

Thanks,

Detlef

Forums:

AGl | Tue, 02/12/2013 - 16:08

I think, you can dump all your particles and then analyze their velocities by external scripts/program.

nasato | Wed, 02/13/2013 - 14:34

Hi

You could visualize that directly in Paraview (after using lpp). In case you want extract the data from a specific region in a csv file, just open your data in Paraview and do as follow:
1- Click to create a Clip. Select Box in the Clip Type and mark the option "Inside Out". Define the box in the region of your interest and click Apply (only particles inside the box you created should be visible).
2 - Go to Selection Inspector (View > Selection Inspector, in case is not already open), in Current Object select the Clip you created and click Create Selection.
3 - Change Selection Type to Blocks and Field Type to POINTS.
4 - Save Data

You should get a csv file with information as ID, radius and velocity of all the particles inside the box (Clip) you created.

Hope that helps.

Daniel