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Registered Member #1321
Joined: Sat Feb 16 2008, 03:22AM
Location:
Posts: 843
Well CST has lots of sample problems that you could look at, and it has a rather friendly user interface. Also I may be able to answer some of your questions.
Registered Member #1321
Joined: Sat Feb 16 2008, 03:22AM
Location:
Posts: 843
I think I may have finally succeeded in simulating space-wound helical coils using the magnetostatic solver of EM Studio...something like what would be used as a tesla coil primary, or the secondary of a short-pulse very high voltage "DRPT".
I tried it before but I always ran into trouble of some kind, e.g., the solution wouldn't converge or I got some error messages that I didn't understand and the solver would just stop, etc.
It turns out that I should've read the help files more carefully, as I wasn't setting up the excitation properly, among other things.
For a 10 turn coil of diameter 8 inches and length 10 inches, I get a self-inductance value of about 12.7 uH. With two identical coils spaced about 5 inches apart, I get a coupling coefficient of about 0.026.
The inductance value of the coil is about 6% greater than what Wheeler's formula predicts, so I assume my result is in the ballpark.
Next, I'll see if it's possible to simulate an auto-transformer arrangement and then I'll try it on a flat-spiral type geometry.
Registered Member #1321
Joined: Sat Feb 16 2008, 03:22AM
Location:
Posts: 843
Well it seems I can't make the magnetostatic solver work with an autotransformer coil, only with separate coils.
Next, I'll see if any of the high frequency solvers can do it.
(BTW, PanosB_GR, speaking of CST, IIRC you were involved in a discussion at edaboard.com regarding the emission models included in Particle Studio. Supposedly the latest version includes a new emission model for the PIC solver - explosive electron emission - although I didn't get a chance to fool around with it yet. I just thought you might be interested to know that if you don't already).
@jpsmith123 i have played only a little bit with that solver. i don't know if i am understanding it's parameters though and how to correctly simulate a diode.
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CST EM studio and other simulators
