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In this paper the effect of geometry shape of the Helmholtz resonator on its resonant frequency and on its noise attenuation capability is discussed. The theory of resonant frequency depending on the shape of the vessel of the resonator is verified analytical and numerically using COMSOL for one and two degrees of freedom. The simulation was validated experimentally and has shown very good agreements. Various shapes of the resonators were compared in arrays. A better understanding of the shape effect is shown through simulations.Copyright © 2012 by ASME

volume 1: advanced computational mechanics; advanced simulation-based engineering sciences; virtual and augmented reality; applied solid mechanics and material processing; dynamical systems and control

Geometry Effects on the Noise Reduction of Helmholtz Resonators