Spiousas, Ignacio; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José(American Institute of Physics, 2011-06-13)
This letter demonstrates the mechanical tuning of modes confined in two-dimensional acoustic cavities based on anisotropic metafluids. The employed metafluids have been designed with effective parameters such that the ...
Reyes Ayona, Edgar; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José(Acoustical Society of America, 2012-10)
A multiple-scattering theory is applied to study the homogenization of clusters of elastic cylinders distributed in a isotropic lattice and embedded in a viscous fluid. Asymptotic relations are derived and employed to ...
García Chocano, Víctor Manuel; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José(American Institute of Physics, 2012-08-22)
This letter presents the design of a reduced acoustic cloak that uses a temperature gradient in order to obtain sound speeds larger than in air. The cloak consists of a circular acoustic crystal made of ten concentric ...