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AC Coil Problem
Posted Jul 20, 2010, 7:34 a.m. EDT 1 Reply
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Good morning,
we are a group of students and try to simulate a conduction cooker.
But we have serious problems modeling the AC coil.
We are thankful for every hints or tips or a little example model we could use.
Normaly, such cookers work with 50-100 kHz and up to 3000 W´s.
Thanks for your help.
we are a group of students and try to simulate a conduction cooker.
But we have serious problems modeling the AC coil.
We are thankful for every hints or tips or a little example model we could use.
Normaly, such cookers work with 50-100 kHz and up to 3000 W´s.
Thanks for your help.
1 Reply Last Post Jul 21, 2010, 6:15 a.m. EDT
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Posted:
1 decade ago
Hi
For me it looks fin as start, I would though use a cylindrical coordinate and define the current with that one (Model - Definitions - Cylindrical coordinate system" + "Model - MF - Extgernal Current density": use cylindrical coordinate, 0,J0[a/m^2],0
One can use PML to have a smaller air cylinder and infinite elements.
If you have AC, then Frequency Domain solving is to be used, this means a harmonic development of the equations.
But then the question is around sigle coil / multiple coil winding, as there are skin effects (AC & f>5Hz) that is different for single/multiple windings. This you can simulate in 2D axi, then one could use the current density of a 2D axi to map it onto a 3D (extrusion couplings). There are a couple of other discussions about this on the forum
--
Good luck
Ivar
For me it looks fin as start, I would though use a cylindrical coordinate and define the current with that one (Model - Definitions - Cylindrical coordinate system" + "Model - MF - Extgernal Current density": use cylindrical coordinate, 0,J0[a/m^2],0
One can use PML to have a smaller air cylinder and infinite elements.
If you have AC, then Frequency Domain solving is to be used, this means a harmonic development of the equations.
But then the question is around sigle coil / multiple coil winding, as there are skin effects (AC & f>5Hz) that is different for single/multiple windings. This you can simulate in 2D axi, then one could use the current density of a 2D axi to map it onto a 3D (extrusion couplings). There are a couple of other discussions about this on the forum
--
Good luck
Ivar