Department of Mathematics and Applied Mathematics
Swirl propagating under an applied force in the horizontal direction.
Swirl propagating under an applied force in the horizontal direction.
Swirl propagating under an applied force in the horizontal direction.
Swirl propagating under an applied force in the horizontal direction.
When a part of the fluid is rotating clockwise or anticlockwise in closed loops, we have a vortex.
Pairs of vortices in fluids are created when part of the fluid is set in motion.
Vortex created by the passage of an aircraft wing, revealed by coloured smoke.
Vortices are usually created in pairs with opposite circulation (a "vortex" and an "antivortex").
Pairs of vortices are traveling.
Two pairs of fluid vortices collide.
...are mathematically more tractable than ordinary vortices in fluids.
They are realised at the nanoscale