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WaveRunner: I should thank you for all the work you put into your code! Are you still working on it? There are two limitations that I would put at the top of my list:
1) Ability to have a coil longer than the projectile, and 2) Ability to simulate pulsing the coil when the projectile has already entered it.
I wrote some code to display a 2D map of delay times vs. pulse times which uses colors to show hotspots where the maximum velocity, energy, or whatever parameter you choose lies. It is interesting to look at, and I will release it soon.
TheMerovingian: I currently have the projectile material fixed at mild steel, so it is ok for reluctance gun only. The next release will allow you to pick projectile material and starting position, I think the same functions will simulate an inductance gun too.
Registered Member #29
Joined: Fri Feb 03 2006, 09:00AM
Location: Hasselt, Belgium
Posts: 500
Hi William, I occasionally play with my coilgun codes. However, I have not had a lot of time in the lasr few months.
I do have a code that simulates projectiles of any length (even any shape, if you want). It is based on a finite element method, so the geometry input is more complicated than the simple code.
I can make the FEM code available to you, if you like. Alternatively, I can change the simplified model code to fit your requirements. Let me know what oter specfic changes you want (other then the projectile length constraint)...
Registered Member #4259
Joined: Mon Dec 12 2011, 06:48PM
Location:
Posts: 8
that link is not working. I remember a coilgun simulator ages ago that was just a load of text boxes where you tweak the values in them in order to match coil size to voltage to capacitance, etc, but I cannot find it anywhere now. does anyone have a link, please?
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1714
You might be thinking of "Barry's" coilgun site. Could start at
The javascript simulator seems to be in disrepair, or my Java installation is broken. Would anyone be interested in getting similar charts from a spreadsheet (Excel or open source), in which you type in values for R, L, and C? The inductance calculator was similar in style. Sliders & stuff for data entry. Handy calculation of turns per layer, number of turns, etc. Then trival application of Wheeler's formula.
Registered Member #90
Joined: Thu Feb 09 2006, 02:44PM
Location: Seattle, Washington
Posts: 301
The java simulators at Barry's coilgun site are sadly all broken. Sorry about that. The whole browser-side java platform suffered self-immolation by security issues and really can't/shouldn't be used at all. I need to rewrite them all in modern technology (html5?) to make them work again, but it's not a priority and it's a lot of work and I have no plans to do so. Bummer, I know. Barry
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Coil Gun Simulator
