Timeline for Boundary condition for a floating electrostatic potential
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Nov 18, 2013 at 14:13 | vote | accept | DumpsterDoofus | ||
| Nov 18, 2013 at 11:17 | answer | added | Gotaquestion | timeline score: 1 | |
| Nov 17, 2013 at 12:55 | comment | added | DumpsterDoofus | Just to be specific about how to find it, it's in the module "Electrostatics" in the "Stationary" study type and it's an option in the usual list of boundary conditions; it's called "Floating Potential". It also shows up in a couple other physics modules, but electrostatics seemed the simplest one to play with it. | |
| Nov 17, 2013 at 1:28 | comment | added | Gotaquestion | I completely agree with you but I haven't seen an integral formulation in COMSOL documentation. As far as I can remember they always use differential formulation for standard modules. I will have a look when I go to work @DumpsterDoofus | |
| Nov 16, 2013 at 18:37 | comment | added | DumpsterDoofus | @Gotaquestion: It's 4.3, although I don't think the version number makes much difference for electrostatics. | |
| Nov 16, 2013 at 18:36 | comment | added | DumpsterDoofus | @JerrySchirmer: That makes sense and was what I originally thought, since the electric potential gradient along the direction of the surface should vanish. But apparently that's not the condition that numerical solvers use? | |
| Nov 16, 2013 at 17:52 | comment | added | Zo the Relativist | I've always taken the boundary condition at the surface of a conductor to be that the tangential components of the electric field are all zero. | |
| Nov 16, 2013 at 17:34 | history | edited | DumpsterDoofus | CC BY-SA 3.0 |
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| Nov 16, 2013 at 16:32 | comment | added | Gotaquestion | Which COMSOL version is this? | |
| Nov 16, 2013 at 16:18 | history | edited | DumpsterDoofus | CC BY-SA 3.0 |
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| Nov 16, 2013 at 15:51 | history | asked | DumpsterDoofus | CC BY-SA 3.0 |