"vel[1] v time
0.0000000000000	0.0000000000000
0.3515742187500	0.0000942238024
0.7031484375000	0.0001459859665
1.0547226562500	0.0001914373585
1.4062968750000	0.0002348872914
1.7578710937500	0.0002788537699
2.1094453125000	0.0003227525643
2.4610195312500	0.0003619777557