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Talk:Directory:Tornado in a Can
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Invention by Frank Polifka pulverizes items down to micrometer powder. The energy-in-versus-energy-out ratio defies known laws of physics. Several applications now in place.
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- So the Windhexe machine can "pulverise" matter while generating "very little heat".
All of this "pulverising" can be done without FRICTION :between the molecules ? Friction generates heat. Perhaps the 'inventor' should patent the super-lubricant used!
- the lubricant is the vortex. and this is a suction-inducing,friction-reducing movement. look through Viktor Schauberger and see for yourself. unsigned comment 09.35, 10 Aug 2006 by Esaruoho
- Have had a "look through" & presume you refer to vortex/vortices. It is well understood in fluid dynamics that a vortex can be generated in any fluid - be that fluid anything from a gas to a liquid. A characteristic of vortices is the existance of a boundary layer between the fluid of the rapidly rotating vortex and the surrounding identical fluid. This boundary layer allows a very low co-efficient of friction between the vortex and the surround.
So far, good, in relation to the Windhexe machine ; a vortex can be created within an approximately circular solid walled container using any fluid.
But what happens if solids are injected into the vortex, pieces of any solid matter ? Then the Law of Energy = Mass x velocity squared takes effect. (where velocity is the tangential velocity of rotation of the vortex at it's outer radius). The solid matter will be flung out at the tangent of the vortex radius, just as happens in tornado's or dust devils. If there is a solid wall outside the vortex, as with the Windhexe machine, the solids will hit the wall creating the friction and heat to which I referred in my opening comment.
You might argue that a denser, high viscosity, fluid might be used so that the solids are not 'flung out', and you would be correct - but, the solids would then just rotate at the same tangential velocity as the fluid ; so there would be no friction between the pieces of solid and thus no 'pulverising'.
If anyone proposes to demonstrate a Windhexe machine in operation I would be most pleased to be invited to be present as an observer.Gadfly 02:49, 19 Aug 2006 (EDT)
- Have had a "look through" & presume you refer to vortex/vortices. It is well understood in fluid dynamics that a vortex can be generated in any fluid - be that fluid anything from a gas to a liquid. A characteristic of vortices is the existance of a boundary layer between the fluid of the rapidly rotating vortex and the surrounding identical fluid. This boundary layer allows a very low co-efficient of friction between the vortex and the surround.
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