581 citations · 4.8k across the 83 of their papers we have counts for
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Numerical study of acoustic cell trapping above elastic membrane disks driven in higher-harmonic modes by thin-film transducers with patterned electrodes
André G. Steckel, Henrik Bruus
Excitations of MHz acoustic modes are studied numerically in 10-um-thick silicon disk membranes with a radius of 100 and 500 um actuated by an attached 1-um-thick (AlSc)N thin-film…
A transition from boundary- to bulk-driven acoustic streaming due to nonlinear thermoviscous effects at high acoustic energy densities
Jonas Helboe Joergensen, Wei Qiu, Henrik Bruus
Acoustic streaming is studied in a rectangular microfluidic channel. It is demonstrated theoretically, numerically, and experimentally with good agreement, frictional heating can a…
Theory and modeling of nonperturbative effects at high acoustic energy densities in thermoviscous acoustofluidics
Jonas Helboe Joergensen, Henrik Bruus
A theoretical model of thermal boundary layers and acoustic heating in microscale acoustofluidic devices is presented. It includes effective boundary conditions allowing for simula…
Acoustophoresis in polymer-based microfluidic devices: modeling and experimental validation
Fabian Lickert, Mathias Ohlin, Henrik Bruus +1
A finite-element model is presented for numerical simulation in three dimensions of acoustophoresis of suspended microparticles in a microchannel embedded in a polymer chip and dri…
Fast microscale acoustic streaming driven by a temperature-gradient-induced non-dissipative acoustic body force
Wei Qiu, Jonas Helboe Joergensen, Enrico Corato +2
We study acoustic streaming in liquids driven by a non-dissipative acoustic body force created by light-induced temperature gradients. This thermoacoustic streaming produces a velo…
Bulk acoustofluidic devices driven by thin-film transducers and whole-system resonance modes
André G. Steckel, Henrik Bruus
In acoustofluidics, acoustic resonance modes for fluid and microparticle handling are traditionally excited by bulk piezoelectric transducers. In this work, we demonstrate by numer…
Numerical study of the coupling layer between transducer and chip in acoustofluidic devices
William Naundrup Bodé, Henrik Bruus
We study by numerical simulation in two and three dimensions the coupling layer between the transducer and the microfluidic chip in ultrasound acoustofluidic devices. The model inc…
Theory and simulation of AC electroosmotic suppression of acoustic streaming
Bjørn G. Winckelmann, Henrik Bruus
Acoustic handling of nanoparticles in resonating acoustofluidic devices is often impeded by the presence of acoustic streaming. For micrometer-sized acoustic chambers, this acousti…