Elmer Discussion Forum

The problem is the more complex one has not converged. One issue with iterative solvers, is every iteration is a solution, but it might not be a converged solution. By default Elmer moves on when the number of specified iterations has taken place, even if convergence is not reached. If you change to...

When i run the mesh you posted with the sif you posted it looks OK to me What version of Elmer are you running?

You have no BCs at the ends, only a desired coil current specified in the solver. I let the solver calculate the coil current, and specify the potential at each end. ! CoilSolver Solver 1 Exec Solver = Before All Equation = CoilSolver Procedure = "CoilSolver" "CoilSolver" Linear ...

Is it possible to zip and post the mesh?

Are you sure the BCs are at each end of the coil?

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.