DocumentCode :
983509
Title :
A new static field solver with open boundary conditions in the 3D-CAD-system MAFIA
Author :
Krawczyk, F. ; Weiland, T.
Author_Institution :
DESY, Hamburg, West Germany
Volume :
24
Issue :
1
fYear :
1988
fDate :
1/1/1988 12:00:00 AM
Firstpage :
55
Lastpage :
58
Abstract :
The numerical solution of Maxwell´s equations involves calculation in a finite volume enclosing the structure of interest. Using simple Dirichlet or Neumann boundary conditions causes inaccuracies or requires excessively large meshes. For a static problem, which can be reduced to a scalar potential problem that can be described by Poisson´s equation, it is shown that one can formulate more accurate boundary conditions. A multipole expansion of the well-known solutions of the Poisson equation can be used to yield better boundary values from the neighboring inner potentials. This modified formulation is used in solving electrostatic and magnetostatic problems with the recently developed solver of the 3-D CAD system MAFIA, which solves Maxwell´s equations for a very broad range of applications
Keywords :
CAD; electromagnetism; electrostatics; magnetostatics; numerical methods; physics computing; 3D-CAD-system MAFIA; Dirichlet; Maxwell´s equations; Neumann; Poisson´s equation; boundary conditions; electrostatic; finite volume; magnetostatic; multipole expansion; numerical solution; open boundary conditions; scalar potential problem; static field solver; Application software; Boundary conditions; Boundary value problems; Current distribution; Design automation; Frequency domain analysis; Integral equations; Magnetic flux; Magnetic materials; Magnetostatics; Material properties; Maxwell equations; Mesh generation; Packaging; Poisson equations; Sparse matrices; Surface fitting;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/20.43855
Filename :
43855
Link To Document :
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