Dear COMSOLers,
I am trying to study the magnetic field map produced inside a magentic horn (geometry photos and simplefied model attached). The current is flowing in the r-z-plane rather than azimutally (i.e. in phi), hence the field inside is a toroidal field along the phi-plane. I am defining the physics conditions through "Magnetic Field" module. Under "coil -> Geometry Analysis" I define the current input port. However, I am facing the follwoing problems: 1- When I add the surrounding Air domain, I am not able to define the current output port anymore, why? 2- I am getting the follwoing error message when try to solve my model "Numeric coil Coil 1 (coil1) not solved for. Solve it in a Coil Geometry Analysis step.", what dose it mean? 3- What I am missing in the model to make it running?
Regards, Tamer