Settling of microplastics in mucus-rich water column: The role of biologically modified rheology of seawater

MM Mrokowska, A Krztoń-Maziopa - Science of The Total Environment, 2024 - Elsevier
Non-buoyant microplastics (MPs) sink through the marine water column, adversely affecting
the ecosystem. The manner in which MPs influence the water environment depends to a …

[HTML][HTML] Does water column stratification influence the vertical distribution of microplastics?

K Gunaalan, R Almeda, A Vianello, C Lorenz… - Environmental …, 2024 - Elsevier
Microplastic pollution has been confirmed in all marine compartments. However, information
on the sub-surface microplastics (MPs) abundance is still limited. The vertical distribution of …

[HTML][HTML] Impacts of energy transmission properties on non-Newtonian fluid flow in stratified and non-stratified conditions

MM Syam, MI Syam - International Journal of Thermofluids, 2024 - Elsevier
The flow properties are essential to understanding the mechanism of the working fluid and
its effect on energy transmission. This study examines the rheological properties of …

On the rising and sinking motion of bouncing oil drops in strongly stratified liquids

JG Meijer, Y Li, C Diddens, D Lohse - Journal of Fluid Mechanics, 2023 - cambridge.org
When an immiscible oil drop is immersed in a stably stratified ethanol–water mixture, the
Marangoni flow on the surface of the drop can experience an oscillatory instability, so that …

Densitaxis: Active particle motion in density gradients

VA Shaik, GJ Elfring - Proceedings of the National Academy of Sciences, 2024 - pnas.org
Organisms often swim through density-stratified fluids. Here, we investigate the dynamics of
active particles swimming in fluid density gradients and report theoretical evidence of taxis …

Added mass of oscillating bodies in stratified fluids

B Voisin - Journal of Fluid Mechanics, 2024 - cambridge.org
The concept of added mass is generalized to stratified fluids, accounting for the presence of
internal waves. Once the added mass of a moving body is known, so is the hydrodynamic …

Buoyancy oscillations

B Voisin - Journal of Fluid Mechanics, 2024 - cambridge.org
The oscillations of buoyant bodies in stratified fluids are deduced from the variations of their
added mass. Three configurations are considered: a body displaced from its neutral level …

Effect of layer thickness for the bounce of a particle settling through a density transition layer

S Wang, J Wang, J Deng - Physical Review E, 2023 - APS
We study numerically a spherical particle settling through a density transition layer at
moderate Reynolds numbers Re u= 69∼ 259 for the upper fluid. We investigate how the …

Sedimentation of spheroids in Newtonian fluids with spatially varying viscosity

V Anand, V Narsimhan - Journal of Fluid Mechanics, 2024 - cambridge.org
This paper examines the rigid body motion of a spheroid sedimenting in a Newtonian fluid
with a spatially varying viscosity field. The fluid is at zero Reynolds number, and the viscosity …

Lattice Boltzmann method for particulate multiphase flow system

Q Li, G Yang, Y Huang, X Lu, J Min, M Wang - International Journal of …, 2024 - Elsevier
This study proposes a numerical model for particulate three-phase flow in microchannels
based on multiphase lattice Boltzmann method (LBM). The model combines the color …