Hi
There are several options, but first of all so you really need MEF and solving for V ? (haven't checked the application though) as its far heavier than MF and often MF is enough at least to debug and start with. (in MEF all materials must have a conductivity different from zero, except if defined as a Ampere laws domain)
One way is to make the surrounding a cylinder (add a cylindrical coordinates along with the cylinder axis to define the current more easily) and set a phi current flow in the cylinder shell, another way is to set a top and bottom. But because of the vector field behaviour of the Maxwell equations you will get non uniformities along all sharp edges, so often its worth to cut out the outer tube in the vicinity of your current shell (add a 10% radius layer and hide the external tube part in the view hide entities)
But this solenoid type fields is probably not "uniform enough (but its rather realistic of what one achieve from an experimental "uniform" B field)
So to get it "more linear", try adding a "Perfect magnetic conductor" on the flat top and bottom surfaces of the cylinder
remains to ask yourself how "physical" this is, I leave that to you
the attached file is 3D and v4.3a.161
--
Good luck
Ivar
There are several options, but first of all so you really need MEF and solving for V ? (haven't checked the application though) as its far heavier than MF and often MF is enough at least to debug and start with. (in MEF all materials must have a conductivity different from zero, except if defined as a Ampere laws domain)
One way is to make the surrounding a cylinder (add a cylindrical coordinates along with the cylinder axis to define the current more easily) and set a phi current flow in the cylinder shell, another way is to set a top and bottom. But because of the vector field behaviour of the Maxwell equations you will get non uniformities along all sharp edges, so often its worth to cut out the outer tube in the vicinity of your current shell (add a 10% radius layer and hide the external tube part in the view hide entities)
But this solenoid type fields is probably not "uniform enough (but its rather realistic of what one achieve from an experimental "uniform" B field)
So to get it "more linear", try adding a "Perfect magnetic conductor" on the flat top and bottom surfaces of the cylinder
remains to ask yourself how "physical" this is, I leave that to you
the attached file is 3D and v4.3a.161
--
Good luck
Ivar