RE: Big Toroids, collective conscious brain storm

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Jim,

At 05:50 PM 9/12/2006, you wrote:
> Terry,
>
> You did quite a lot of electrostatic modeling. How important is the actual
> complete toroid considering the inside is a flat plane generally?

Not too important.  Here is a toroid with a center flat plane but the 
outside edge is only a half circle:

http://drsstc.com/~piranha/PIRANHA/HoopToroid-01.gif

http://drsstc.com/~piranha/PIRANHA/HoopToroid-02.gif

The main voltage stress is still in the usual place on the outer 1/2 
of the toroid surface.

If we remove the center completely as if the outer edge were 
suspended by three spokes we get:

http://drsstc.com/~piranha/PIRANHA/HoopToroid-03.gif

http://drsstc.com/~piranha/PIRANHA/HoopToroid-04.gif

The sharp top edge of the toroid is now a bit of a concern must most 
of the stress is still to the outside.  If we look at a pure voltage plot:

http://drsstc.com/~piranha/PIRANHA/HoopToroid-05.gif

We can see that there just isn't anyplace for a spark to go inside 
the toroid.  the outer surface does all the work and the rest is just 
expensive metal bending.

Cheers,

        Terry