Vorticity · Curl of the Flow
unseel.com · ω = ∇ × u  ·  local spin  ·  vortex core
core vorticity 0 s⁻¹
spinning wheels 0
max wheel rate 0 s⁻¹
relation ω = 2Ω
state standby
flow streamlines
spinning paddle wheel (ω ≠ 0)
still paddle wheel (ω = 0)
vortex core
Unseel.com · Vorticity