Results 31 to 40 of about 1,935 (199)
Outer Acoustic Streaming Flow Driven by Asymmetric Acoustic Resonances
Micromachines, 2021 While boundary-driven acoustic streaming resulting from the interaction of sound, fluids and walls in symmetric acoustic resonances have been intensively studied in the literature, the acoustic streaming fields driven by asymmetric acoustic resonances ...
Junjun Lei +3 more
doaj +1 more source
Practical microcircuits for handheld acoustofluidics [PDF]
Lab on a Chip, 2021 Practical acoustofluidics for lab-on-a-chip applications is now enabled by battery-powered handheld circuits.
An Huang +10 more
openaire +4 more sources
Acoustics Today, 2023 The propagation of acoustic waves in fluids and solids produces fascinating phenomena that have been studied since the late 1700s and through to today, where it is finding broad application in manipulating fluids and particles at the micro to nano-scale.
openaire +2 more sources
Constant-Power versus Constant-Voltage Actuation in Frequency Sweeps for Acoustofluidic Applications
Micromachines, 2022 Supplying a piezoelectric transducer with constant voltage or constant power during a frequency sweep can lead to different results in the determination of the acoustofluidic resonance frequencies, which are observed when studying the acoustophoretic ...
Fabian Lickert +2 more
doaj +1 more source
Micromachines, 2022 In this study, the mixing performance in a Y-junction microchannel with acoustic streaming was investigated through numerical simulation. The acoustic streaming is created by inducing triangular structures at the junction and sidewalls regions.
Sintayehu Assefa Endaylalu +1 more
doaj +1 more source
Acoustophoretic trapping of particles by bubbles in microfluidics
Frontiers in Physics, 2023 We present in this paper a simple method to produce strategic acoustic particle capture sites in microfluidic channels in a controlled way. Air bubbles are intermittently injected into a micro-capillary with rectangular cross section during a flow motion
Itziar González +3 more
doaj +1 more source
Theory of pressure acoustics with boundary layers and streaming in curved elastic cavities [PDF]
, 2018 The acoustic fields and streaming in a confined fluid depend strongly on the acoustic boundary layer forming near the wall. The width of this layer is typically much smaller than the bulk length scale set by the geometry or the acoustic wavelength, which
Henrik Bruus +6 more
core +2 more sources
An acoustofluidic sputum liquefier [PDF]
Lab on a Chip, 2015 The first microfluidic-based on-chip sputum-liquefaction device is demonstrated via an acoustofluidic micromixer.
Po-Hsun, Huang +15 more
openaire +2 more sources
Characterization of Acoustic Streaming in Gradients of Density and Compressibility [PDF]
, 2018 Suppression of boundary-driven Rayleigh streaming has recently been demonstrated for fluids of spatial inhomogeneity in density and compressibility owing to the competition between the boundary-layer-induced streaming stress and the inhomogeneity-induced
Augustsson, Per +3 more
core +2 more sources
Pressure-Driven Filling of Closed-End Microchannel: Realization of Comb-Shaped Transducers for Acoustofluidics [PDF]
, 2018 We demonstrate the complete filling of both deionized water (DI water) and liquid metal (eutectic gallium-indium, EGaIn) into closed-end microchannels driven by a constant pressure at the inlet.
Gañán-Calvo, Alfonso M. +6 more
core +1 more source