vortex
fluid flow revolving around an axis of rotation
cyclone
large scale air mass that rotates around a strong center of low pressure
dust devil
meteorological phenomenon
polar low
small-scale, short-lived depression over certain ocean areas
Steam devil
a type of vortex similar to a dust devil
whirlwind
weather phenomenon
wingtip vortices
turbulence caused by difference in air pressure on either side of wing
eddy
swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime
Rankine vortex
mathematical formula for viscous fluid
tornado
violently rotating column of air that is in contact with both the earth's surface and a cumulonimbus cloud in the air
ocean gyre
large system of rotating ocean currents