Hi. I'm completely novice in comsol, and I'm trying to simulate magnetic field due to solenoid.
I was wondering how can we simulate "n turn per unit length [m]" in comsol.
Here, I want to have a solenoid of length 50mm and n = 100 turn per m, so I've put 5 for the values of N turn in coil domain, but I'm unsure about the values that I got.
For a single coil, it has approximately 5.52 micro T, and if I extend that into solenoid with 5 turns for total length, it should give around 5.52*5 ~= 25 micro Tesla.
But as you can see from the attached file, it gives around 80 micro T, which seems wrong.
I've attached both single coil and solenoid, with same radius and distance from the point that I'm interested in.
Also, I'm trying to simulate a thin solenoid, which means we can ignore the thickness of the wire. So i've made a geometry of cylinder which has a really small difference between inner and outer radius. Is it valid to do so?