acoustic waves

Controlling acoustic wave propagation via rotational motion

Ying Wu, Professor, Applied Mathematics and Computational Sciences

Feb 27, 12:00 - 13:00

B9 L2 H2 H2

Propagation of acoustic waves in time-varying and/or moving media has attracted a lot of attentions and is expected to lead to many intriguing applications. In this talk, I will discuss our recent work on acoustic wave propagation in spinning media (air or water). I will start with a review of the theoretical foundation built upon the Mie scattering framework, in which both the wave equation and the boundary conditions will be specifically discussed. The study is limited in the linear regime and exhibit the peculiar scattering features.

Tunable sound transmission shapes up

1 min read · Sat, Sep 24 2016

acoustic waves phonons applied mathematics computational science

Carefully designed crystal structures can now be tuned to control how they transmit acoustic waves.