Title :
Hybrid method for computing demagnetizing fields
Author :
Fredkin, D.R. ; Koehler, T.R.
Author_Institution :
Dept. of Phys., California Univ., San Diego, La Jolla, CA, USA
fDate :
3/1/1990 12:00:00 AM
Abstract :
A hybrid finite-element-boundary integral method is proposed for computing demagnetizing field. For a three-dimensional (3-D) mesh with N nodes in the magnetic region, the method requires storage O( N4/3), and no nodes outside the magnetic region need to be considered. The method is suitable for nonlinear calculations, can be adapted to handle curved boundaries, and is especially convenient when the magnetic region consists of several parts whose relative positions are variable
Keywords :
boundary-elements methods; demagnetisation; finite element analysis; magnetic fields; numerical methods; curved boundaries; demagnetising field computation; hybrid finite element-boundary integral method; magnetic field; magnetic region; nonlinear calculations; three-dimensional mesh; Boundary conditions; Demagnetization; Finite element methods; Green function; Laplace equations; Magnetic materials; Magnetic recording; Magnetic separation; Physics; Sparse matrices;
Journal_Title :
Magnetics, IEEE Transactions on
