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EXACT NONREFLECTING BOUNDARY CONDITIONS FOR AN ACOUSTIC PROBLEM IN THREE DIMENSIONS 被引量:6

EXACT NONREFLECTING BOUNDARY CONDITIONS FOR AN ACOUSTIC PROBLEM IN THREE DIMENSIONS
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摘要 In this paper, nonreflecting artificial boundary conditions are considered for an acoustic problem in three dimensions. With the technique of Fourier decomposition under the orthogonal basis of spherical harmonics, three kinds of equivalent exact artificial boundary conditions are obtained on a spherical artificial boundary. A numerical test is presented to show the performance of the method. In this paper, nonreflecting artificial boundary conditions are considered for an acoustic problem in three dimensions. With the technique of Fourier decomposition under the orthogonal basis of spherical harmonics, three kinds of equivalent exact artificial boundary conditions are obtained on a spherical artificial boundary. A numerical test is presented to show the performance of the method.
出处 《Journal of Computational Mathematics》 SCIE EI CSCD 2003年第1期15-24,共10页 计算数学(英文)
基金 This work is supported partly by the Special Funds for Major State Basic Research Projects of China and the National Science Foundation of China.
关键词 Exterior problem Nonreflecting artificial boundary condition Acoustic equa-tion Three-dimensions. Exterior problem, Nonreflecting artificial boundary condition, Acoustic equa-tion, Three-dimensions.
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