A vortex (plural: vortices) is a spinning, often turbulent,flow of fluid. Any spiral motion with closed streamlines is vortex flow. The motion of the fluid swirling rapidly around a center is called a vortex. The speed and rate of rotation of the fluid are greatest at the center, and decrease progressively with distance from the center. Properties contrail demonstrates vortex|300px|thumb]]Vortices display some special properties:The fluid pressure in a vortex is lowest in the