Reinforcement learning of optimal active particle navigation
M Nasiri, B Liebchen - New Journal of Physics, 2022 - iopscience.iop.org
The development of self-propelled particles at the micro-and the nanoscale has sparked a
huge potential for future applications in active matter physics, microsurgery, and targeted …
huge potential for future applications in active matter physics, microsurgery, and targeted …
Optimizing low-Reynolds-number predation via optimal control and reinforcement learning
We seek the best stroke sequences of a finite-size swimming predator chasing a non-motile
point or finite-size prey at low Reynolds number. We use optimal control to seek the globally …
point or finite-size prey at low Reynolds number. We use optimal control to seek the globally …
Hydrodynamically induced helical particle drift due to patterned surfaces
DL Chase, C Kurzthaler… - Proceedings of the …, 2022 - National Acad Sciences
Advances in microfabrication enable the tailoring of surfaces to achieve optimal sorting,
mixing, and focusing of complex particulate suspensions in microfluidic devices. Corrugated …
mixing, and focusing of complex particulate suspensions in microfluidic devices. Corrugated …
A meticulous friction torque model for a lubricated ball screw considering the surface roughness
Y Zhang, C Zhou, H Feng - Tribology International, 2023 - Elsevier
This study proposes a meticulous friction torque model considering both the asperity
interaction and fluid traction mechanisms in micro-scale physical analysis. The fractal theory …
interaction and fluid traction mechanisms in micro-scale physical analysis. The fractal theory …
3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
In several phenomena in biology and industry, it is required to understand the
comprehensive behavior of sedimenting micro-particles in fluids. Here, we use the …
comprehensive behavior of sedimenting micro-particles in fluids. Here, we use the …
Steady azimuthal flow field induced by a rotating sphere near a rigid disk or inside a gap between two coaxially positioned rigid disks
Geometric confinements play an important role in many physical and biological processes
and significantly affect the rheology and behavior of colloidal suspensions at low Reynolds …
and significantly affect the rheology and behavior of colloidal suspensions at low Reynolds …
Microswimmers near corrugated, periodic surfaces
C Kurzthaler, HA Stone - Soft matter, 2021 - pubs.rsc.org
We explore hydrodynamic interactions between microswimmers and corrugated, or rough,
surfaces, as found often in biological systems and microfluidic devices. Using the Lorentz …
surfaces, as found often in biological systems and microfluidic devices. Using the Lorentz …
Slow motion of a sphere near a sinusoidal surface
G Li - Journal of Fluid Mechanics, 2023 - cambridge.org
Particle motion near non-plane surfaces can exhibit intricate hydrodynamics, making it an
attractive tool for manipulating particles in microfluidic devices. To understand the …
attractive tool for manipulating particles in microfluidic devices. To understand the …
Asymmetric Stokes flow induced by a transverse point force acting near a finite-sized elastic membrane
A Daddi-Moussa-Ider - Journal of the Physical Society of Japan, 2020 - journals.jps.jp
A deep understanding of the physical interactions between nanoparticles and target cell
membranes is important in designing efficient nanocarrier systems for drug delivery …
membranes is important in designing efficient nanocarrier systems for drug delivery …
Transport of a passive scalar in wide channels with surface topography: An asymptotic theory
JV Roggeveen, HA Stone… - Journal of Physics …, 2023 - iopscience.iop.org
We generalize classical dispersion theory for a passive scalar to derive an asymptotic long-
time convection–diffusion equation for a solute suspended in a wide, structured channel and …
time convection–diffusion equation for a solute suspended in a wide, structured channel and …