Magrid design.

Discuss the technical details of an "open source" community-driven design of a polywell reactor.

Moderators: tonybarry, MSimon

Post Reply
Torulf2
Posts: 286
Joined: Fri Sep 21, 2007 9:50 pm
Location: Swedem

Magrid design.

Post by Torulf2 »

How about this magrid design? Have it been something like this before?
Its a twisted circle, its have two gaps and the magnet lines are closed.
[img]http://farm9.staticflickr.com/8237/8516 ... _b.jpg[img]
Last edited by Torulf2 on Fri Mar 01, 2013 2:40 am, edited 1 time in total.

Stubby
Posts: 877
Joined: Sun Aug 05, 2012 4:05 pm

Re: Magrid design.

Post by Stubby »

Torulf2 wrote:How about this magrid design? Its have been something like this before?
Its a twisted circle, its have two gaps and the magnet lines are closed.
Image
Everything is bullshit unless proven otherwise. -A.C. Beddoe

KitemanSA
Posts: 6179
Joined: Sun Sep 28, 2008 3:05 pm
Location: OlyPen WA

Re: Magrid design.

Post by KitemanSA »

Looks like it would have one hellaciously long line cusp. They tend to leak badly.

jrvz
Posts: 33
Joined: Thu Jul 09, 2009 5:28 pm

Re: Magrid design.

Post by jrvz »

You can think of this as a descendent of the "baseball seam" devices from the 70s. See: http://www.flickr.com/photos/llnl/3085193876/
- Jim Van Zandt

hanelyp
Posts: 2261
Joined: Fri Oct 26, 2007 8:50 pm

Re: Magrid design.

Post by hanelyp »

2 very long line cusps, but yes leaky.
The daylight is uncomfortably bright for eyes so long in the dark.

DeltaV
Posts: 2245
Joined: Mon Oct 12, 2009 5:05 am

Re: Magrid design.

Post by DeltaV »

Nice graphic, Torulf.
But, if it breaks, will it leak mercury? :)

Posting a historical link to other spherical magrids:
viewtopic.php?f=3&t=2649

Rjay goes crazy with spherical meanders starting around page 10.

D Tibbets
Posts: 2775
Joined: Thu Jun 26, 2008 6:52 am

Re: Magrid design.

Post by D Tibbets »

Long line cusps but narrower. It is a partiial solution and I suspect is approaching what I have considered and what I suspect is the Skunk works design. A key point is forming a single central magnetic null that might lend itself to Wiffleball inflation.

Also, I'm uncertain what the B field is like where the magnet reverses direction. The discussion of the baseball lacing design deficiencies discussed in the EMC2 patent application may indeed apply.

Dan Tibbets
To error is human... and I'm very human.

KitemanSA
Posts: 6179
Joined: Sun Sep 28, 2008 3:05 pm
Location: OlyPen WA

Re: Magrid design.

Post by KitemanSA »

D Tibbets wrote:Long line cusps but narrower.
Why do you think these would be narrower? They are basically just the typical point cusps stretched all the way around the sphere several times.

Post Reply