Evolution of the vorticity  at different
time steps
Mesh grid = 1024 x 1024
|   Time = 2 |   Time = 4 |   Time = 6 | 
|   Time = 10 |   Time = 16 |   Time = 20 | 
|   Time = 24 |   Time = 28 |   Time = 30 | 
|   Time = 36 |   Time = 48 |   Time = 60 | 
|   Time = 68 |   Time = 72 |   Time = 76 | 
|   Time = 80 |   Time = 82 |   Time = 84 | 
|   Time = 92 |   Time = 96 |   Time = 98 | 

Time = 100