Victor M. Garcia-Chocano

TL;DR: It is concluded that the porous cylinders can be used as building blocks whose physical parameters can be optimized in order to design efficient barriers adapted to different noisy environments.

TL;DR: In this paper, a model for the T matrix of the microperforated shells has been developed, where it has been predicted an extraordinary broadband sound absorption that is explained in terms of the multiple scattering phenomena occurring at the surfaces of the absorptive units.

TL;DR: In this article, the use of silica aerogel is examined theoretically and experimentally as part of a compact soft acoustic metamaterial structure, which enables a wide range of exotic effective macroscopic properties to be demonstrated, including negative density, density near zero and non-resonant broadband slow sound propagation.

TL;DR: Theoretical, numerical and experimental results examining thermoviscous losses in sonic crystals are presented in this article, enabling the fabrication and characterization of an acoustic metamaterial absorber with complex-valued anisotropic inertia.

TL;DR: In this article, the authors investigated the analogous case of mass density and acoustic waves, which represents inertial enhancement, starting from fundamental relationships for the homogenized quasi-static effective density of a fluid host with fluid inclusions, theoretical expressions are developed for the conditions on the real and imaginary parts of the constitutive fluids to have inertial enhancements.