Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/73143
Title: An accelerated boundary element method using fast Fourier transform on multipoles
Authors: Lim, K.-M. 
Ong, E.-T.
Lee, H.-P. 
Keywords: Acoustics scattering
Boundary element method
Fast Fourier transform
Multipole
Issue Date: 2005
Source: Lim, K.-M.,Ong, E.-T.,Lee, H.-P. (2005). An accelerated boundary element method using fast Fourier transform on multipoles. 3rd M.I.T. Conference on Computational Fluid and Solid Mechanics : 1141-1145. ScholarBank@NUS Repository.
Abstract: We present a fast algorithm, called the fast Fourier transform on multipoles (FFTM) method, for accelerating the boundary element method. The algorithm employs the multipole and local expansions to approximate far-field potentials and exploits the discrete convolution nature of the multipole to local translation operator to accelerate the potential evaluation process. The method is illustrated with a three-dimensional acoustics scattering problem governed by the Helmholtz equation. It is shown that the method has approximately linear computational complexity and it achieves accurate results with a relatively low order of expansion. © 2005 Elsevier Ltd.
Source Title: 3rd M.I.T. Conference on Computational Fluid and Solid Mechanics
URI: http://scholarbank.nus.edu.sg/handle/10635/73143
ISBN: 0080444814
Appears in Collections:Staff Publications

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