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Re: [TCML] Spherical topload SGTC
Hi
The streamer tends to rotate when it reaches the lateral part of the sphere, so I believe that it has something to do with the rising hot current air from the spark.
http://www.youtube.com/watch?v=nj0ARi5JTgc
Higher break rates will definetively rise the spark channel temperature, so I suppose that the "tornado effect" can be done easier. One solution would be to rectify the NSTs and run it with a varible BPS rotary spark gap (I dont have one).
Another idea is to glue a little permanent magnet on the internal wall of the sphere, so the particles, no matter the moving direction, will have spiral movements. That will be an idea to experiment in the future..maibe..
Another idea is to have a sectionated sphere, with a laminar air flow through the thin section (on the upper 1/3 of the sphere) to create a lower pressure zone on the top of the sphere (through Coanda effect). I suppose that the streamer formation would be localised on this lower pressure zone (top of the sphere), so the single streamer can be emitted permanently on the same region of the sphere.
A lot of ideas but not too much tools to make them real. Anyway, the topload different configuration can be a possible teritory to explore.
>
>
--- On Tue, 12/22/09, futuret@xxxxxxx <futuret@xxxxxxx> wrote:
> From: futuret@xxxxxxx <futuret@xxxxxxx>
> Subject: Re: [TCML] Spherical topload SGTC
> To: tesla@xxxxxxxxxx
> Date: Tuesday, December 22, 2009, 9:01 PM
>
> Hi Liviu,
>
> Nice vortex plume effect. Are there signs that the
> plume is rotating with a tornado effect?
> I remember a demonstration at a teslathon where a fellow
> created a rotating effect in the
> plume on top of a sphere. I forget
> if he used a weak fan to help blow the sparks into this
> swirling motion. The fan would
> have to be very weak I guess. I'm not sure if anyone
> used a fan for such a purpose or
> if I have a false memory. High break-rates may
> perhaps help to create this effect?
>
> Happy Holidays,
>
> John
>
>
>
>
>
> -----Original Message-----
> From: Liviu Vasiliu <teslina@xxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Sent: Tue, Dec 22, 2009 12:08 pm
> Subject: [TCML] Spherical topload SGTC
>
>
> 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:
>
> http://4hv.org/e107_plugins/forum/forum_viewtopic.php?81334
>
> Enjoy
>
>
>
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