The role of particle shape in computational modelling of granular matter

J Zhao, S Zhao, S Luding - Nature Reviews Physics, 2023 - nature.com
Granular matter is ubiquitous in nature and is present in diverse forms in important
engineering, industrial and natural processes. Particle-based computational modelling has …

Colloidal hard spheres: Triumphs, challenges, and mysteries

CP Royall, P Charbonneau, M Dijkstra, J Russo… - Reviews of Modern …, 2024 - APS
The simplicity of hard spheres as a model system is deceptive. Although the particles
interact solely through volume exclusion, that nevertheless suffices for a wealth of static and …

Stokesian processes: inferring Stokes flows using physics-informed Gaussian processes

JJ Molina, K Ogawa, T Taniguchi - Machine Learning: Science …, 2023 - iopscience.iop.org
We develop a probabilistic Stokes flow framework, using physics informed Gaussian
processes, which can be used to solve both forward/inverse flow problems with missing …

An Eulerian-based immersed boundary method for particle suspensions with implicit lubrication model

N Hori, ME Rosti, S Takagi - Computers & Fluids, 2022 - Elsevier
We describe an immersed boundary method in which the fluid–structure coupling is
achieved in an Eulerian framework. The method is an improved extension of the immersed …

Propulsion of a chiral swimmer in viscoelastic fluids

T Kobayashi, JJ Molina, R Yamamoto - Physical Review Research, 2024 - APS
Microswimmers often use chirality to generate translational movement from rotation motion,
exhibiting distinct behaviors in complex fluids compared to simple Newtonian fluids …

Direct numerical simulations of a microswimmer in a viscoelastic fluid

T Kobayashi, G Jung, Y Matsuoka, Y Nakayama… - Soft Matter, 2023 - pubs.rsc.org
This study presents the application of the smoothed profile (SP) method to perform direct
numerical simulations for the motion of both passive and active “squirming” particles in …

Hydrodynamics of an odd active surfer in a chiral fluid

Y Hosaka, R Golestanian… - New Journal of …, 2023 - iopscience.iop.org
We theoretically and computationally study the low-Reynolds-number hydrodynamics of a
linear active microswimmer surfing on a compressible thin fluid layer characterized by an …

Dynamics of microswimmers near a liquid–liquid interface with viscosity difference

C Feng, JJ Molina, MS Turner, R Yamamoto - Physics of Fluids, 2023 - pubs.aip.org
Transport of material across liquid interfaces is ubiquitous for living cells and is also a crucial
step in drug delivery and in many industrial processes. The fluids that are present on either …

Dynamics of microswimmers near a soft penetrable interface

C Feng, JJ Molina, MS Turner, R Yamamoto - Physical Review Research, 2022 - APS
Few simulations exist for microswimmers near deformable interfaces. Here, we present
numerical simulations of the hydrodynamic flows associated with a single microswimmer …

Learning to swim efficiently in a nonuniform flow field

K Sankaewtong, JJ Molina, MS Turner, R Yamamoto - Physical Review E, 2023 - APS
Microswimmers can acquire information on the surrounding fluid by sensing mechanical
queues. They can then navigate in response to these signals. We analyze this navigation by …