146 citations · 380 across the 11 of their papers we have counts for
5 papers · 1 filter
Slow sound laser in lined flow ducts
Antonin Coutant, Yves Aurégan, Vincent Pagneux
We consider the propagation of sound in a waveguide with an impedance wall. In the low frequency regime, the first effect of the impedance is to decrease the propagation speed of a…
PT-symmetric scattering in flow duct acoustics
Yves Aurégan, Vincent Pagneux
We show theoretically and experimentally that the propagation of an acoustic wave in an airflow duct going through a pair of diaphragms, with equivalent amount of mean-flow-induced…
Low frequency sound attenuation in a flow duct using a thin slow sound material
Yves Auregan, Maaz Farooqui, Jean-Philippe Groby
We present a thin subwavelength material that can be flush mounted to a duct and which gives a large wide band attenuation at remarkably low frequencies in air flow channels. To de…
Fano resonance scattering in waveguide with an impedance boundary condition
Lei Xiong, Wenping Bi, Yves Aurégan
Sound propagation in a waveguide lined with one section of locally reactive material is studied by resonance scattering approach. The objective is to understand the effects of mode…
Slow sound in lined flow ducts
Yves Auregan, Vincent Pagneux
We consider the acoustic propagation in lined flow duct with a purely reactive impedance at the wall. This reacting liner has the capability to reduce the speed of sound, and thus…