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|Title:||An accelerated boundary element method using fast Fourier transform on multipoles|
|Authors:||Lim, K.-M. |
Boundary element method
Fast Fourier transform
|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|
|Appears in Collections:||Staff Publications|
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