What is the scientific explanation behind the formation and behavior of a liquid vortex?

A liquid vortex is formed when a fluid rotates around a central axis, creating a swirling motion. This rotation is caused by the conservation of angular momentum, where the fluid's velocity increases towards the center of the vortex. The behavior of a liquid vortex is influenced by factors such as viscosity, density, and the initial conditions of the fluid. The vortex can exhibit characteristics like stability, turbulence, and the formation of secondary vortices.