Strouhal Number Calculator
Compute Strouhal number St = fL/v.
Input Data
Input Shedding freq f.
Hz
Input Characteristic length L.
m
Input Velocity v.
m/s
Results
0.01
St = fL/v = 0.010000
At a glance:Strouhal Number Calculator: enter parameters to compute results; complements related calculators.
Formula
St = f L / v
f: vortex shedding frequency, L: characteristic length
How to Use
- Enter frequency f, length L, velocity v.
- Get Strouhal number St.
Case Studies
f=1 Hz, L=0.1 m, v=10 m/s
St = 0.01.
FAQ
Typical value?
Cylinder wake gives St≈0.2 for Re≈10³–10⁵.
Related Tools
References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.