activity
19952023
most citedOn the forces acting on a small particle in an acoustical field in a viscous fluid

581 citations · 4.8k across the 83 of their papers we have counts for

collaborators

83 papers

physics.flu-dyn2023★ 5 cited

Acoustic radiation force on a heated spherical particle in a fluid including scattering and microstreaming from a standing ultrasound wave

Henrik Bruus, Bjørn G. Winckelmann

Analytical expressions are derived for the time-averaged, quasi-steady, acoustic radiation force on a heated, spherical, elastic, solid microparticle suspended in a fluid and locat…

physics.flu-dyn2022★ 16 cited

The acoustic radiation force on a spherical thermoviscous particle in a thermoviscous fluid including scattering and microstreaming

Bjørn G. Winckelmann, Henrik Bruus

We derive general analytical expressions for the time-averaged acoustic radiation force on a small spherical particle suspended in a fluid and located in an axisymmetric incident a…

physics.flu-dyn2022

Constant-power versus constant-voltage actuation in frequency sweeps for acoustofluidic applications

Fabian Lickert, Henrik Bruus, Massimiliano Rossi

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 reson…

physics.flu-dyn2022★ 6 cited

Determination of the complex-valued elastic moduli of polymers by electrical impedance spectroscopy for ultrasound applications

William N. Bodé, Fabian Lickert, Per Augustsson +1

A method is presented for the determination of complex-valued compression and shear elastic moduli of polymers for ultrasound applications. The resulting values, which are scarcely…

physics.flu-dyn2021

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…

physics.flu-dyn2021

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…