Anisotropic particles in turbulence
Anisotropic particles are common in many industrial and natural turbulent flows. When these
particles are small and neutrally buoyant, they follow Lagrangian trajectories while …
particles are small and neutrally buoyant, they follow Lagrangian trajectories while …
Long-distance atmospheric transport of microplastic fibres influenced by their shapes
Recent studies have highlighted the importance of the atmosphere in the long-range
transport of microplastic fibres. However, their dry deposition in the atmosphere is not fully …
transport of microplastic fibres. However, their dry deposition in the atmosphere is not fully …
Full rotational dynamics of plastic microfibers in turbulence
The motion, settling, and dispersion of microplastics in the ocean are determined by their
rotational dynamics. We present experiments on elongated, large aspect ratio, and mildly …
rotational dynamics. We present experiments on elongated, large aspect ratio, and mildly …
Alignment of inertialess spheroidal particles in flow-structure-dominated regions of turbulent channel flow: shape effect
The alignment of elongated fibers and thin disks is known to be significantly influenced by
the presence of fluid coherent structures in near-wall turbulence (Cui et al. 2021). However …
the presence of fluid coherent structures in near-wall turbulence (Cui et al. 2021). However …
Elongation enhances encounter rates between phytoplankton in turbulence
JA Arguedas-Leiva, J Słomka… - Proceedings of the …, 2022 - National Acad Sciences
Phytoplankton come in a stunning variety of shapes but elongated morphologies dominate—
typically 50% of species have aspect ratio above 5, and bloom-forming species often form …
typically 50% of species have aspect ratio above 5, and bloom-forming species often form …
Experimental investigation of inertial fibres and disks in a turbulent boundary layer
We study experimentally the behaviour of negatively buoyant disks and fibres in a turbulent
boundary layer. The regime is relevant to the transport of natural sediment or plastic …
boundary layer. The regime is relevant to the transport of natural sediment or plastic …
Interface-resolved direct numerical simulations of the interactions between spheroidal particles and upward vertical turbulent channel flows
The interactions between finite-size spheroidal particles and upward turbulent flows in a
vertical channel are numerically simulated with a direct-forcing fictitious domain method at …
vertical channel are numerically simulated with a direct-forcing fictitious domain method at …
Orientation, distribution, and deformation of inertial flexible fibers in turbulent channel flow
D Dotto, C Marchioli - Acta Mechanica, 2019 - Springer
In this paper, we investigate the dynamics of flexible fibers in turbulent channel flow. Fibers
are longer than the Kolmogorov length scale of the carrier flow, and their velocity relative to …
are longer than the Kolmogorov length scale of the carrier flow, and their velocity relative to …
Analysis of multiple successive collisions between a prolate spheroidal particle and a plane wall
Y Cui, Y Wang, Z Jin, R Hu, K Meng, B Shan, Y Liu - Powder Technology, 2023 - Elsevier
This study investigates multiple successive collisions between elastic prolate spheroid
particles and a rigid planar wall in vacuum. The influence of various factors on multiple …
particles and a rigid planar wall in vacuum. The influence of various factors on multiple …
Why spheroids orient preferentially in near-wall turbulence
L Zhao, HI Andersson - Journal of Fluid Mechanics, 2016 - cambridge.org
Non-spherical particles are known to orient preferentially in near-wall turbulence, but rod-
like and disk-like particles align themselves differently relative to the mean vorticity direction …
like and disk-like particles align themselves differently relative to the mean vorticity direction …