碩士 / 國立中央大學 / 物理學系 / 86 / Wave-breaking events create bubbly layers at the ocean
surface. These layers act as a waveguide for sound propagation
in the audio frequency range.Experiments show that acoustic
propagation in such a waveguide occurs in distinctfrequency
bands. We use the dispersive and exponential sound speed profile
to investigate the sound propagation. The theoretical results
are in good agreementwith the observations. It is found that the
frequency bands are due to normal modepropagation. The number of
normal modes is shown to correspond to the number of discrete
acoustic bands. The theoretical results are also compared to
thenondispersive-exponential profile and inverse-square profile
which have beenstudied in the past.
| Identifer | oai:union.ndltd.org:TW/086NCU00198004 |
| Date | January 1998 |
| Creators | Ho, Hsin-Yi, 何心怡 |
| Contributors | Zhen Ye, 葉真 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 80 |
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