"vel[1] v time
0.0000000000000	0.0000000000000
0.3515742187500	0.0007551217581
0.7031484375000	0.0009756169603
1.0547226562500	0.0011976830914
1.4062968750000	0.0014425941221
1.7578710937500	0.0017450023199
2.1094453125000	0.0020854962223
2.4610195312500	0.0024199980242