A review of shaped colloidal particles in fluids: anisotropy and chirality
This review treats asymmetric colloidal particles moving through their host fluid under the
action of some form of propulsion. The propulsion can come from an external body force or …
action of some form of propulsion. The propulsion can come from an external body force or …
Hamiltonian dynamics and structural states of two-dimensional active particles
Y Shoham, N Oppenheimer - Physical Review Letters, 2023 - APS
We show that a two-dimensional system of flocking active particles interacting
hydrodynamically can be expressed using a Hamiltonian formalism. The Hamiltonian …
hydrodynamically can be expressed using a Hamiltonian formalism. The Hamiltonian …
Stokes flows in three-dimensional fluids with odd and parity-violating viscosities
T Khain, C Scheibner, M Fruchart… - Journal of Fluid …, 2022 - cambridge.org
The Stokes equation describes the motion of fluids when inertial forces are negligible
compared with viscous forces. In this article, we explore the consequence of parity-violating …
compared with viscous forces. In this article, we explore the consequence of parity-violating …
Trading particle shape with fluid symmetry: on the mobility matrix in 3-D chiral fluids
Chiral fluids–such as fluids under rotation or a magnetic field as well as synthetic and
biological active fluids–flow in a different way than ordinary ones. Due to symmetries broken …
biological active fluids–flow in a different way than ordinary ones. Due to symmetries broken …
Free-space and near-wall dynamics of a flexible sheet sedimenting in Stokes flow
We present a numerical study of a thin elastic sheet with small extensibility freely
sedimenting in a viscous fluid. Two scenarios are investigated: sedimentation in free space …
sedimenting in a viscous fluid. Two scenarios are investigated: sedimentation in free space …
Hydrodynamic coupling melts acoustically levitated crystalline rafts
Going beyond the manipulation of individual particles, first steps have recently been
undertaken with acoustic levitation in air to investigate the collective dynamical properties of …
undertaken with acoustic levitation in air to investigate the collective dynamical properties of …
Waves, algebraic growth, and clumping in sedimenting disk arrays
An array of spheres descending slowly through a viscous fluid always clumps [JM Crowley,
J. Fluid Mech. 45, 151 (1971) JFLSA7 0022-1120 10.1017/S0022112071003045]. We show …
J. Fluid Mech. 45, 151 (1971) JFLSA7 0022-1120 10.1017/S0022112071003045]. We show …
Sedimenting pairs of elastic microfilaments
M Bukowicki, ML Ekiel-Jeżewska - Soft Matter, 2019 - pubs.rsc.org
The dynamics of two identical elastic filaments settling under gravity in a viscous fluid in the
low Reynolds number regime is investigated numerically. A large family of initial …
low Reynolds number regime is investigated numerically. A large family of initial …
Hydrodynamically induced aggregation of two dimensional oriented active particles
R Bashan, N Oppenheimer - Soft Matter, 2024 - pubs.rsc.org
We investigate a system of co-oriented active particles interacting only via hydrodynamic
and steric interactions in a two-dimensional fluid. We offer a new method of calculating the …
and steric interactions in a two-dimensional fluid. We offer a new method of calculating the …
Dynamics of mass polar spheroids during sedimentation
The dynamics of sedimenting particles under gravity are surprisingly complex due to the
presence of effective long-ranged forces. When the particles are polar with a well-defined …
presence of effective long-ranged forces. When the particles are polar with a well-defined …