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The Tibetan singing bowl: acoustics and fluid dynamics
Tibetan singing bowl acoustics fluid dynamics
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2011/7/7
We present the results of an experimental investigation of the acoustics and fluid dynamics of Tibetan singing bowls. Their acoustic behavior is rationalized in terms of the related dynamics of standi...
Exterior cloaking with active sources in two dimensional acoustics
Active cloaking Acoustic waves Helmholtz equation Green’s formula
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2010/12/3
We cloak a region from a known incident wave by surrounding the region with three or more devices that cancel out the field in the cloaked region without significantly radiating waves. Since very litt...
An inverse problem of ocean acoustics
inverse problem ocean acoustics
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2010/11/1
The inverse problem of finding the refraction coefficient of a shallow ocean from the observation of the extra Cauchy data for the acoustic field at the surface of the ocean is studied. Uniqueness the...
Acoustics of the Indian Drum
Acoustics the Indian Drum
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2010/11/2
This article investigates as to how the Indian Drums are able to produce harmonics. In particular, it looks at the density distribution on an Indian Drum, the Tabla, and shows that it is the form of t...