Structure of the streaming flow generated by a sphere in a fluid undergoing rectilinear oscillation

P Li, JF Collis, DR Brumley, L Schneiders… - Journal of Fluid …, 2023 - cambridge.org
A solid body in a viscous fluid undergoing oscillatory motion naturally produces a steady
secondary flow due to convective inertia. This phenomenon is embodied in the streaming …

Purely viscous acoustic propulsion of bimetallic rods

J McNeill, N Sinai, J Wang, V Oliver, E Lauga, F Nadal… - Physical Review …, 2021 - APS
Synthetic microswimmers offer models for cell motility and their tunability makes them
promising candidates for biomedical applications. Here, we measure the acoustic …

Reciprocal swimming at intermediate Reynolds number

NJ Derr, T Dombrowski, CH Rycroft… - Journal of Fluid …, 2022 - cambridge.org
In Stokes flow, Purcell's scallop theorem forbids objects with time-reversible (reciprocal)
swimming strokes from moving. In the presence of inertia, this restriction is eased and …

Acoustic radiation force and torque on spheroidal particles in an ideal cylindrical chamber

JP Leao-Neto, M Hoyos, JL Aider… - The Journal of the …, 2021 - pubs.aip.org
In this article, the acoustic radiation force and torque exerted on a small spheroidal particle
immersed in a nonviscous fluid inside an ideal cylindrical chamber is theoretically …

Ultrasonic chaining of emulsion droplets

MA Abdelaziz, JA Díaz A, JL Aider, DJ Pine… - Physical Review …, 2021 - APS
Emulsion droplets trapped in an ultrasonic levitator organize themselves in a way that solid
spheres do not. Rather than coalescing into planar colloidal crystals, monodisperse …

Dynamics of an acoustically trapped sphere in beating sound waves

MA Abdelaziz, DG Grier - Physical Review Research, 2021 - APS
A focused acoustic standing wave creates a Hookean potential well for a small sphere and
can levitate it stably against gravity. Exposing the trapped sphere to a second transverse …

Acoustic propulsion of a small, bottom-heavy sphere

F Nadal, S Michelin - Journal of Fluid Mechanics, 2020 - cambridge.org
We present here a comprehensive derivation for the speed of a small bottom-heavy sphere
forced by a transverse acoustic field and thereby establish how density inhomogeneities …

The propulsion direction of nanoparticles trapped in an acoustic field

P Li, AR Nunn, DR Brumley, JE Sader… - Journal of Fluid …, 2024 - cambridge.org
Solid particles trapped in an acoustic standing wave have been observed to undergo
propulsion. This phenomenon has been attributed to the generation of a steady streaming …

Modeling and simulation of fluid–structure interaction in physics and biology

NJ Derr - 2022 - search.proquest.com
Abstract Fluid--structure interaction (FSI) occurs widely across physics and biology. In this
thesis, I present four projects in which I investigate systems with elements of FSI analytically …