Fluid Dynamics
Vortex Shedding Simulator
A variable-controlled vortex shedding laboratory with animated velocity sweep, live Von Kármán street visualization, lock-in detection, frequency charts, governing equations, and exportable data.
Model
Strouhal
Von Kármán
Mesh
61 nodes
Live sampled
Output
CSV
Export ready
Parameters
Body shape preset
Animated velocity sweep
Governing Equations
Strouhal Relation
f_s = (St × V) / D
Lock-In Range
0.8 f_n ≤ f_s ≤ 1.2 f_n
Lock-In Velocities
V_min = 0.8 f_n D / St, V_max = 1.2 f_n D / St
Current shedding frequency: 2.000 Hz at V = 10 m/s.
Lock-in velocity band: 10.0 – 15.0 m/s. ⚠ Currently in lock-in!
Von Kármán Street
Shedding Freq (f_s)
2.000Hz
Freq Ratio (f_s/f_n)
0.800
Lock-In Start
10.0m/s
Lock-In End
15.0m/s
Frequency vs Velocity
Simulation Data
| Velocity (m/s) | f_s (Hz) | f_n (Hz) |
|---|---|---|
| 0.0 | 0.000 | 2.50 |
| 1.5 | 0.300 | 2.50 |
| 3.0 | 0.600 | 2.50 |
| 4.5 | 0.900 | 2.50 |
| 6.0 | 1.200 | 2.50 |
| 7.5 | 1.500 | 2.50 |
| 9.0 | 1.800 | 2.50 |
| 10.5 | 2.100 | 2.50 |
| 12.0 | 2.400 | 2.50 |
| 13.5 | 2.700 | 2.50 |
| 15.0 | 3.000 | 2.50 |
| 16.5 | 3.300 | 2.50 |
| 18.0 | 3.600 | 2.50 |
| 19.5 | 3.900 | 2.50 |
| 21.0 | 4.200 | 2.50 |
| 22.5 | 4.500 | 2.50 |
| 24.0 | 4.800 | 2.50 |
| 25.5 | 5.100 | 2.50 |
| 27.0 | 5.400 | 2.50 |
| 28.5 | 5.700 | 2.50 |
| 30.0 | 6.000 | 2.50 |