산업기술연구 (Journal of Industrial Technology)
- 제9권
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- Pages.79-85
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- 1989
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- 1229-9588(pISSN)
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- 1598-1371(eISSN)
도파관 내의 음파산란 해석에 있어서 Helmhortz 방정식의 정적 한계에 관한 연구
On the static limit of Helmhortz equation for the acoustic wave scattering in a waveguide
초록
In this paper, the static limit of Helmhortz equation is discussed in the analysis of acoustic wave scattering in a waveguide. Boundary integral equation method is used to formulate the scattering process in the exerior of the scatterer and finite element method in the interior of the scatterer. And hybrid Ray-Mode Method is used the provide the Green's function of the waveguide. The proposed algorithm is applied to a sample poblem with arbitrary scatterer in a waveguide. The results are compared with those of Laplace's equation which is the governing equation in the static problems.
키워드