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Re: [TCML] Spherical topload SGTC
In your gasoline experiment is there a preferred vortex rotation?
----- Original Message -----
To: Tesla Coil Mailing List
Sent: Wed, 23 Dec 2009 04:41:55 +0000 (UTC)
Subject: Re: [TCML] Spherical topload SGTC
Liviu Vasiliu wrote:
> Happy Hollidays to you.
> I have a little Chrismas vacance so I had the time to finish another project. Is a spherical topload little SGTC used for spontaneously manifestation of the "swirling streamer effect". The idea behind is is keeping constant the settings of a TC system (power input, gap distance, copling,etc) and working on spark formation by using different size spheres not connected to the main topload (something like the additional sphere used at the end of the electrodes of the electrostatic machines to control the electric field). The project pics and the result movies are here:
As someone who used to make his living making artificial tornadoes...
(check US patent 5,971,765)
artificial tornadoes need two things, swirling flow coming in at the
base and something to produce an updraft. fire whirls are a good
example.. burning fuel at the base creates a rising column of air, and
some local feature causes spin, which as it "falls" into the middle, it
speeds up (just like the ice skater doing a spin)
For an exciting experiment, put about a half liter of gasoline (or
petroleum ether) on a flat concrete surface on a windless day, light it
on fire, and away it goes. The smallest asymmetry in air flow will start
the spin, and it will accelerate as it winds up. The key is that as the
speed picks up, small droplets form and get sucked up, and produce heat
all the way up the vortex.
I never thought about it before, but a spark is an interesting source of
heat that can introduce heat all along the axis of your vortex (much
like liquid fuels in powerful fire whirls)
If you want to keep it stable, what you need is a slightly asymmetric
flow for the swirl.
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