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vortex ring state vuichard recovery
vortex ring dolphin
retreating blade stall
~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION A Vortex Ring is also called a Toroidal Vortex ...
15,721,295 views
5 years ago
A toroidal vortex ring is formed when a fast moving fluid moves through a relatively still other or different fluid. For example, smoke ...
103,958 views
6 years ago