77 citations · 147 across the 7 of their papers we have counts for
7 papers
Spatial transient behavior in waveguides with lossy impedance boundary conditions
Wei Guo, Juan Liu, Wenping Bi +3
Attenuation in acoustic waveguides with lossy impedance boundary conditions are associated with non-Hermitian and non-normal operators. This subject has been extensively studied in…
Anomalous transmission through periodic resistive sheets
Antonin Coutant, Yves Aurégan, Vincent Pagneux
This work investigates anomalous transmission effects in periodic dissipative media, which is identified as an acoustic analogue of the Borrmann effect. For this, the scattering of…
Ultra-thin low frequency perfect sound absorber with high ratio of active area
Yves Aurégan
A concept of ultra-thin low frequency perfect sound absorber is proposed and demonstrated experimentally. To minimize non-linear effects, an high ratio of active area to total area…
Acoustic Propagation in lined ducts with varying cross-section using a Mild-Slope approximation
Maaz Farooqui, Yves Aurégan, Vincent Pagneux
A modelling of low-frequency sound propagation in slowly varying ducts with smoothly varying lining is proposed leading to an acoustic mild-slope equation analogue to the with mild…
Using liner surface modes in ducts to make obstacles reflectionless
Maaz Farooqui, Yves Aurégan, Vincent Pagneux
Acoustic cloaking for the suppression of backscattering inside ducts is proposed in the audible range where plane waves are curved around the object using the surface modes of the…
Slow Sound in a duct, effective transonic flows and analogue black holes
Yves Aurégan, Pierre Fromholz, Florent Michel +2
We propose a new system suitable for studying analogue gravity effects, consisting of a gas flowing in a duct with a compliant wall. Effective transonic flows are obtained from uni…