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Noise silencer in the form of a Helmholtz resonator at the outlet of an air duct of finite length
Authors:D. V. Bazhenov  L. A. Bazhenova  A. V. Rimskii-Korsakov
Affiliation:(1) Andreev Acoustics Institute, ul. Shvernika 4, Moscow, 117036, Russia
Abstract:A new type of noise silencer with the original design of the air duct-resonator system is proposed. The design is free of the disadvantages that are inherent in the conventional design with a resonator placed inside the air duct. A physical model of the silencer is developed, and its efficiency is calculated for different geometrical and physical parameters of the resonator and the air duct. A comparison between the calculated characteristics and the experimental data is performed, and their agreement is demonstrated.
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