WIT Press


Application Of The Fast Multipole Method To The 3-D BEM Analysis Of Electron Guns

Price

Free (open access)

Paper DOI

10.2495/BE970601

Volume

19

Pages

10

Published

1997

Size

723 kb

Author(s)

T. Nishida and K. Hayami

Abstract

Although BEM enjoys the boundary only discretization, the computational work and memory requirements become prohibitive for large-scale 3-D problems due to its dense matrix formulation. The computation of n-body problems, such as in charged particle simulation, has a similar inherent difficulty. In this paper, we use the Fast Multipole Method to overcome these difficulties and apply it to the 3-D analysis of electron guns, which involves both solving BEM and n-body problems. 1 Introduction Despite the advantage of the boundary only discretization, the conven- tional boundary element method (BEM) suffers a crucial computational disadvantage when applying to large scale industrial

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