ploting data

Submitted by Gulniamat on Sun, 07/24/2016 - 13:24

hy friends....!

i have done simulations in LIGGGHTS for granular mixing in cylindrical mixer. For every simulation i got dump files that are present in post polder. For a particular time step e.g 100000th i got a dump file that contain information of all 27000 particles. These information in fact include vx,vy and vz ,also forces and angular velocities as well for all three directions. My question is if i want to plot mean velocity vs time then how i can find mean velocity from this dump file.There are 27000 particle and for each i have vx,vy and vz .
I think that i have to find the mean velocities for some selected time steps and then i have to plot these velocities against corresponding time. is it correct????? if it is correct then i again repeat my question that how i can find mean velocities at particular time step??? anyone there who has this experience....??? Kindly if anyone is there who has the idea about my question then guide me plzzz