Natural Aeroacoustic Oscillations of the Gas Near Two Plates in a Channel
A. P. Konstantinov
Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Keywords: собственные колебания в неограниченных областях, акустический резонанс, тонкостенные препятствия в каналах и трубах, natural oscillations in unbounded regions, acoustic resonance, thin-walled obstacles in channels and tubes
Abstract
Natural aeroacoustic oscillations of the gas near two thin plates arranged in a tandem manner in a rectangular channel are studied in a two-dimensional formulation. A bifurcation of natural frequencies depending on the distance between the plates is detected, and the frequency of natural oscillations is found as a function of the plate length and the distance from the channel walls. The fields of pressure and gas velocities in the examined range of oscillations are constructed.
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