| Presentation | 2000/4/28 Diffraction coefficients of a sphere placed in the neighborhood of a large scale oblate spheroid Kiyoshi SUGIYAMA, Toshihide IWASE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The diffraction coefficient of a rigid sphere which is placed in the neighborhood of a large scale oblate spheroid has been studied by computation. As it is difficult to solve the wave equation where a sphere and an oblate spheroid exit, an approximate method using superposition of scattering waves from the sphere and the oblate spheroid is adopted. A limit of the approximate method is kd/2 under 8, where k is wave number and d is the focal distance of the oblate spheroid. Because the oblate spheroidal wave functions are expressed by the Laguerre functions, when kd/2 is very large. The diffraction coefficients of the sphere-spheroid are compared with the sphere-sphere model. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | artificial head / diffraction coefficient / spherical wave functions / oblate spheroidal wave functions |
| Paper # | EA2000-2 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2000/4/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Diffraction coefficients of a sphere placed in the neighborhood of a large scale oblate spheroid |
| Sub Title (in English) | |
| Keyword(1) | artificial head |
| Keyword(2) | diffraction coefficient |
| Keyword(3) | spherical wave functions |
| Keyword(4) | oblate spheroidal wave functions |
| 1st Author's Name | Kiyoshi SUGIYAMA |
| 1st Author's Affiliation | Tokyo Institute of Polytechnics() |
| 2nd Author's Name | Toshihide IWASE |
| 2nd Author's Affiliation | Tokyo Institute of Polytechnics |
| Date | 2000/4/28 |
| Paper # | EA2000-2 |
| Volume (vol) | vol.100 |
| Number (no) | 27 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |