Kelvin-Helmholtz instability

Kelvin-Helmholtz Instability occurs when two fluids of different densities or speeds flow past each other, causing ripples or waves along their interface. This instability happens because the faster-moving fluid pushes against the slower one, creating shear forces. If these forces are strong enough, they can lead to the formation of turbulent vortices, similar to the waves seen in clouds or ocean water. This phenomenon is important in meteorology, astrophysics, and various engineering applications, as it helps explain patterns in weather systems, ocean currents, and even the behavior of stars and galaxies.