(1) Compile Utility/Particle_Tracking/ptrack*.f90; instructions for model set-up are in the header
(2) set up and run! 
(3) For visualization of particle.pth, use xmvis6 or plot_oil.m (different output formats)

Questions and comments to: Dr. Yun C. Jung (ycjung@hhu.ac.kr), Joseph Zhang
