November 2, 2023 at 12:34 pm

Rob

Forum Moderator

Velocity is 2m/s so what is the unit diameter and rotation speed? 10s could be enough, but may not be.

If you look at the graph, there's a cycle at around 4s period, but you've only really seen two. That could be due to the wake interaction or just that you need more cycles. It's possible you have a rotation cycle effect and a wake effect such that the combined cycle isn't obvious.