Strouhal number (related to Reduced Frequency)
Description
In dimensional analysis, the Strouhal number (St) is a dimensionless number describing oscillating flow mechanisms. In certain cases like heaving (plunging) flight, the characteristic length at Strouhal formula is the amplitude of oscillation and can be used to present a distinction between Strouhal number and Reduced Frequency.
Related formulasVariables
St | Strouhal number (dimensionless) |
k | The reduced frequency (1/s) |
a | Amplitude of the heaving oscillation. (m) |
π | pi |
c | Velocity (m/s) |