Author:
Khramtsov Igor,Kustov Oleg,Palchikovskiy Vadim,Ershov Victor
Abstract
The article considers the reason for the difference in the results of determining the impedance of the single-layer acoustic
liner samples by different methods during the operation in a normal incidence impedance tube. The operation of the normal incidence
impedance tube was simulated by numerical solution of the Navier-Stokes equations. The data obtained from the numerical simulation
were processed by the transfer function method and Dean’s method. A direct determination of the liner impedance, based on the
ratio of the acoustic pressure to the acoustic normal velocity, was used to find out the reasons for the difference in impedance values.
The analysis was carried out in the frequency range close to the resonance. It was shown that the transfer function method determines
the impedance of the sample face, and the Dean’s method determines the impedance of the one cell only.
Publisher
Studio D - akustika s.r.o.
Subject
Acoustics and Ultrasonics
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献