Please use this identifier to cite or link to this item: https://doi.org/10.1142/S0217984905010207
Title: A fast boundary element method for underwater acoustics
Authors: Lim, K.M. 
Ong, E.T.
Lee, H.P.
Lim, S.P. 
Keywords: Boundary element method
FFT
Underwater acoustics
Issue Date: 20-Dec-2005
Source: Lim, K.M., Ong, E.T., Lee, H.P., Lim, S.P. (2005-12-20). A fast boundary element method for underwater acoustics. Modern Physics Letters B 19 (28-29) : 1679-1682. ScholarBank@NUS Repository. https://doi.org/10.1142/S0217984905010207
Abstract: A fast algorithm for the boundary element method is developed to handle problems in underwater acoustics. The algorithm employs the multipole and local expansions to approximate far-field potentials, and exploits the discrete convolution nature of mapping multipole to local expansions to accelerate the potential evaluation process. The speedup in the solution process is achieved by fast Fourier transform on the multipole and local expansion coefficients on a regular grid. The method is demonstrated by a three-dimensional underwater acoustics scattering problem, and it is found to achieve accurate results with relatively low order of expansion. © World Scientific Publishing Company.
Source Title: Modern Physics Letters B
URI: http://scholarbank.nus.edu.sg/handle/10635/73018
ISSN: 02179849
DOI: 10.1142/S0217984905010207
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