Nested Multigrid Methods for the Fast Numerical Computation of 3D Magnetic Fields
نویسندگان
چکیده
This paper deals with the numerical solution of static as well as transient 3D magnetic field problems. Thereby, a finite element method (FEM) with the magnetic vector potential as field variable and a discretisation with edge elements is used. For the efficient solution of the obtained matrix equation system a nested geometrical multigrid solver (MG) is presented, which reduces the solution time considerably. Numerical simulations demonstrate the superiority of the proposed method versus conventional solving strategies.
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