From: Marco.Denicolai@tellabs.com
Date: Thu, 29 Apr 2004 07:40:20 +0300
Subject: RE: [o-o] [TSSP] Modeling with ANSOFT
Hello all, Yes I am (at this stage) just interested in solving for the electric field shape. No hope to gain any answers for arc dynamics :) from Maxwell (or any other commercial package). Terry, thanks for your links, I'll check them too. Of course I could dig in the E-Tesla code, but... I would like, as much as possible, to use public domain or commercially available packages for solving the E-field, so that other ones (I mean not TSSP or tesla list guys) could replicate them. That's why I'm asking how do you model the primary and secondary, basically using a set of shapes with a given potential. Greg told about stacked rings with different potential. But we know that voltage distribution (forgetting about its max value) changes continuously in the secondary. What is the approach of E-Tesla to this issue? Best Regards > -----Original Message----- > From: lod@pacbell.net [mailto:lod@pacbell.net] > Sent: 28. huhtikuuta 2004 07:57 > To: tssp@abelian.demon.co.uk > Subject: Re: [o-o] [TSSP] Modeling with ANSOFT > > > Hi Marco, > > I doubt that Maxwell will be useful in answering specific questions > about arc dynamics, unless there's an interesting analysis module > available for it that I haven't heard of yet. Typically, the > standard > Maxwell suite will perform electrostatic, transient, magnetostatic, > thermal and eddy current solutions. > If you're just interested in solving the electric field, then > probably > the easiest way to model the coil would be to represent it as > a number > of stacked hoops with different voltage assignments, rather > than as a > continuous helix. I did this once, using SolidWorks to make the mech > model, then imported it into Maxwell as an ACIS file. > > BTW, has anyone here played around with QuickHenry? How easy > is it to use? > > > Marco.Denicolai@tellabs.com wrote: > > >Hi All, > > > >A question in particular to Terry and Paul (are you there?). > > > >I am trying to model Thor's toroid, double guard rail, toroid > >protuberance, etc. with ANSOFT (Maxwell software). In your E-Tesla > >program, how did you model: > >- the secondary coil > >- the primary > >- the guard rail > >- the toroid ? > > > >Shape is not a problem. And potential neither for the toroid > (Vtop) and > >the guard rail (zero) but what about the rest of the items? > I mean, not > >the mathematical procedure, just the analogy I could use with ANSOFT. > > > >I would like to verify the postulate of 5 kV/cm required to > elongate up > >to, say, 1.5 m and 1 kV/cm required to elongate further. > Because I have > >really measured that kind of behaviour in the characteristics > >pulse_amount vs streamer length with Thor. > > > >Sadly, I have still a lot of thinking/reading/measuring before I can > >tell you anything valuable. It takes time... > > > >Best Regards > > > > > >_____________________________________________________________ > > > > Marco Denicolai Senior Design Engineer > > Tellabs Oy tel: +358 9 4131 2769 > > DSL Products mobile: +358 50 353 9468 > > Sinikalliontie 7 > > 02630 Espoo FINLAND email: marco.denicolai@tellabs.com > >_____________________________________________________________ > > > > > > > >----------------------------------------- > >============================================================ > >The information contained in this message may be privileged > >and confidential and protected from disclosure. If the > >reader of this message is not the intended recipient, or an > >employee or agent responsible for delivering this message to > >the intended recipient, you are hereby notified that any > >reproduction, dissemination or distribution of this > >communication is strictly prohibited. If you have received > >this communication in error, please notify us immediately by > >replying to the message and deleting it from your computer. > > > >Thank you. > >Tellabs > >============================================================ > > > > > > > > > > > ----------------------------------------- ============================================================ The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any reproduction, dissemination or distribution of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Tellabs ============================================================
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.