Shear-layer vorticity rolls up · growth rate σ = k·ΔU/2 · occurs at magnetopause, ocean interfaces
t = 0.00
Max |ω| = 0.00
KE = 0.00
The Kelvin-Helmholtz instability occurs at the interface between fluids moving at different velocities.
Small perturbations grow exponentially (σ ∝ k·ΔU) and roll up into vortices — seen at cloud boundaries, Jupiter's bands, and Earth's magnetopause.
This simulation uses a 2D vorticity-streamfunction method on a periodic domain.