• viscosity red fluid : tau1=1.0
• density red fluid : 1.0 (with initial noise)
• gravity red fluid : G1[1]= 0.15e-2
• viscosity blue fluid : tau2=0.7
• density blue fluid : 1. (with initial noise)
• gravity blue fluid : none
• surface tension: W=-0.5e-1 (interfluid interaction
• system size: 400x400
• no of iterations: 10000, shown every 20 steps