vortex ring
1 definition found
vortex ring - Collaborative International Dictionary of English v.0.48 :
Vortex ring \Vortex ring\ (Physics)
A ring-shaped mass of moving fluid which, by virtue of its
motion of rotation around an axis disposed in circular form,
attains a more or less distinct separation from the
surrounding medium and has many of the properties of a solid.
[Webster 1913 Suppl.]
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