Acoustic handling of nanoparticles in resonating acoustofluidic devices is often impeded by the presence acoustic streaming. For micrometer-sized chambers, this streaming typically driven viscous shear thin boundary layer near fluid-solid interface. Alternating current (ac) electroosmosis another boundary-driven phenomenon routinely used microfluidic for particle suspensions electrolytes. Here,...

In this study, we use numerical methods to study the acoustic streaming effect of black hole (ABH). Firstly, build an ABH model effect. By deriving waves equations and solving Navier–Stokes equations, obtain flow field, sound temperature field under excitation. Secondly, simulation result reveals mechanism effects on transmission characteristics cavity ABH. The results show that abrupt decrease...

We study acoustic streaming in liquids driven by a nondissipative body force created light-induced temperature gradients. This thermoacoustic produces velocity amplitude nearly 100 times higher than the boundary-driven Rayleigh and Rayleigh-B\'enard convection at gradient of $10\text{ }\text{ }\mathrm{K}/\mathrm{mm}$ channel. The is altered only $0.5\text{ }\mathrm{K}/\mathrm{mm}$. allows for m...

The ability to drive microcentrifugation for efficient micromixing and particle concentration and separation on a microfluidic platform is critical for a wide range of lab-on-a-chip applications. In this work, we investigate the use of amplitude modulation to enhance the efficiency of the microcentrifugal recirculation flows in surface acoustic wave microfluidic systems, thus concomitantly redu...

This study presents a novel acoustic mixer comprising of a microfabricated silicon nitride membrane with a hole etched through it. We show that the introduction of the through hole leads to extremely fast and homogeneous mixing. When the membrane is immersed in fluid and subjected to acoustic excitation, a strong streaming field in the form of vortices is generated. The vortices are always obse...

Auditory stream segregation (or streaming) is a phenomenon in which 2 or more repeating sounds differing in at least 1 acoustic attribute are perceived as 2 or more separate sound sources (i.e., streams). This article selectively reviews psychophysical and computational studies of streaming and comprehensively reviews more recent neurophysiological studies that have provided important insights ...

Streaming potential across a porous medium is induced by a fluid flow due to an electric double layer between a solid and a fluid. When an acoustic wave propagates through a porous medium, the wave pressure generates a relative movement between the solid and the fluid. The moving charge in the fluid induces an electric field due to the seismoelectric conversion. In order to investigate the stre...