Synchronous Phenomenon of Coupled Helmholtz Resonators

Abstract

The purposr of this study is to develop a procedure to attenuate self-excited sound. It is well known that when wind blows against the Helmholtz resonator, self-excited sound is generated at the frequency according to the geometrical shape of the throat and the body. The two cases of the self-excited sound generated by a uniform flow over the coupled resonators are enforced or attenuated each other due to the length of connectiong tube.