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Two-dimensional resonators with small openings

Published online by Cambridge University Press:  17 February 2009

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Abstract

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The acoustic response of a two-dimensional nearly-closed cavity to an excitation through a small opening is examined, using the method of matched asymptotic expansions. The Helmholtz mode of vibration is discussed using a low-frequency expansion of the velocity potential in the cavity interior. The variation in frequency and magnitude of the resonator response is explored, both for the Helmholtz and the natural-frequency modes.

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Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1982