Breaking Wave Simulation

Hi,

I am currently doing breaking wave simulation which involves water in a rectangular tank of 12m3m3m*. However, I am not sure of how to create particles that represent the water. I have looked into the water collapse example from Examples/USER/sph/water_collapse but I am not sure how to generate positions for more than 15,000 particles.

Can anyone help me with this please?

Thank you in advance.

https://lammps.sandia.gov/doc/create_atoms.html

https://lammps.sandia.gov/doc/read_data.html

https://lammps.sandia.gov/prepost.html