# How to calculate strouhal number/vortex shedding frequency of the airfoil using mathematical approach?

As a part of my thesis, I am trying to find when the airfoil starts to flutter by changing pitch angles. I've computed the results in ANSYS Fluent. But now I've to calculate the same using a mathematical approach.

are there any ways to calculate the vortex shedding frequency using strouhal method?

Many thanks, Sharu