Elmer Discussion Forum

It is not required, but is an option. Coil solver saves resources, time, etc. A large coil can be represented with known coil equations.

Or you can model all of the elements and physics, and numerically solve for what the coil equations provide.

take a look at these cases
https://github.com/ElmerCSC/elmer-elmag

Peter is best suited to give a technically explanation but for my limited brain; strategy 1, which I associate with loose couple they converge in steps on after another linear convergence, complete till converged ==> non-linear convergence, complete till converged==> steady state convergence, repeat...

I would describe it as the solution to the equation/equations always vary with time, until a steady state develops. Steady state as opposed to transient gets to the steady state non-changing result faster than going through every transient step. Steady state means that the variables are no longer ch...

I was just looking through these examples
https://github.com/ElmerCSC/elmer-elmag

It will run without the Anti Rotational Projector, it is not needed.

The choice of projector I think is mainly based on geometry and solution type.

Only equation 1 is being applied to the bodies Body 1 Target Bodies(1) = 1 Name = "Body Property 1" Equation = 1 Material = 1 End Body 2 Target Bodies(1) = 2 Name = "Body 2" Equation = 1 Material = 2 End However there are two equations Equation 1 Name = "MgHarm" Active ...

This allowed for a solution to be obtained ! stator_airgap Boundary Condition 2 Name = rotational_mortar_airgap_curve Mortar BC = 4 !Cylindrical Projector = True ! Rotational Projector = Logical True !Projector Skip Nodes = True ! Discontinuous Boundary = Logical True Level Projector Extruded Edges ...

I modified the test case to use coordinates x, y, and z.
No mag function in MATC, may consider writing a user function.

I changed the air mesh to a cylinder, not sure that matters. If I plot coilcurrent, which is supposed to nodal values it is 15000. If I plot coilcurrent e , which is supposed to be elemental values it is 30000.