Dynamics of flexible fibers in viscous flows and fluids

O Du Roure, A Lindner, EN Nazockdast… - Annual Review of …, 2019 - annualreviews.org
The dynamics and deformations of immersed flexible fibers are at the heart of important
industrial and biological processes, induce peculiar mechanical and transport properties in …

Morphological transitions of elastic filaments in shear flow

Y Liu, B Chakrabarti, D Saintillan, A Lindner… - Proceedings of the …, 2018 - pnas.org
The morphological dynamics, instabilities, and transitions of elastic filaments in viscous
flows underlie a wealth of biophysical processes from flagellar propulsion to intracellular …

Flexible filaments buckle into helicoidal shapes in strong compressional flows

B Chakrabarti, Y Liu, J LaGrone, R Cortez, L Fauci… - Nature Physics, 2020 - nature.com
The occurrence of coiled or helical morphologies is common in nature, from plant roots to
DNA packaging into viral capsids, as well as in applications such as oil drilling processes. In …

Theoretical perspectives on natural and artificial micro-swimmers

J Liu, Y Fu, X Liu, H Ruan - Acta Mechanica Solida Sinica, 2021 - Springer
The observations of microorganisms revealed how they swim. As inspired by them, studies
on artificial micro-robots with various actuation mechanisms have been thriving. To elucidate …

Coiling of semiflexible paramagnetic colloidal chains

A Spatafora-Salazar, S Kuei, LHP Cunha, SL Biswal - Soft Matter, 2023 - pubs.rsc.org
Semiflexible filaments deform into a variety of configurations that dictate different
phenomena manifesting at low Reynolds number. Harnessing the elasticity of these …

Dynamics of flexible filaments in oscillatory shear flows

F Bonacci, B Chakrabarti, D Saintillan… - Journal of fluid …, 2023 - cambridge.org
The fluid–structure interactions between flexible fibres and viscous flows play an essential
role in various biological phenomena, medical problems and industrial processes. Of …

Complex dynamics of long, flexible fibers in shear

J LaGrone, R Cortez, W Yan, L Fauci - Journal of Non-Newtonian Fluid …, 2019 - Elsevier
The macroscopic properties of polymeric fluids are inherited from the material properties of
the fibers embedded in the solvent. The behavior of such passive fibers in flow has been of …

Trap**, gliding, vaulting: Transport of semiflexible polymers in periodic post arrays

B Chakrabarti, C Gaillard, D Saintillan - Soft Matter, 2020 - pubs.rsc.org
The transport of deformable particles through porous media underlies a wealth of
applications ranging from filtration to oil recovery to the transport and spreading of biological …

A numerical method for inextensible elastic filaments in viscous fluids

M Jabbarzadeh, HC Fu - Journal of Computational Physics, 2020 - Elsevier
The deformations of flagella are important in the motility of single-and multi-flagellated
bacteria. Existing numerical methods have treated flagella as extensible filaments with a …

Self-buckling and self-writhing of semi-flexible microorganisms

W Lough, DB Weibel, SE Spagnolie - Soft Matter, 2023 - pubs.rsc.org
The twisting and writhing of a cell body and associated mechanical stresses is an
underappreciated constraint on microbial self-propulsion. Multi-flagellated bacteria can even …