Presets
Kármán Vortex Street
swirls shed behind a cylinder
Lid–Driven Cavity
a dragged lid spins a gyre
Buoyant Smoke Plume
warm fluid rises & curls
Jet Into Still Fluid
a stream rolls up & breaks down
Shear–Layer Instability
counter–flows roll into eddies
Flow Over a Step
separation & recirculation
Kármán Vortex Street
Flow strength
1.0
Viscosity
0.06
Show velocity field
Show obstacles
Vorticity confinement
Slow motion
Run
Pause
↺ Restart
Grid:
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Sim time:
—
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Watch
dye trace the swirling currents of each flow
Toggle
“velocity field” — see u, v as arrows
Sliders
— retune flow strength & viscosity
Restart
— still the fluid, replay from rest