Vortex (original) (raw)
A vortex is a spinning turbulent flow which resembles a tornado. Or, maybe it is better to say that a tornado is a well known example of a large vortex. A vortex is also formed as water goes down a drain, as in a sink or a toilet.
Examples
- Lift-induced drag of a wing on an aircraft
- The primary cause of drag in the sail of a sloop
- Sunspot
- Tornado
- Whirlpool