Hydrodynamic slip can align thin nanoplatelets in shear flow

Autor: Catherine Kamal, Simon Gravelle, Lorenzo Botto

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)

Current theories predict that a plate-like particle rotates continuously in a shear flow. Kamal et al. instead show that even nanometric hydrodynamic slip may induce a thin plate-like particle to adopt a stable orientation, and discuss implications o

Externí odkaz: https://doaj.org/article/e6a99600ccf940b8ab3241b293bd7a6b

Dynamic drying transition via free-surface cusps

Autor: Jacco H. Snoeijer, James E. Sprittles, Catherine Kamal, Jens Eggers

Publikováno v: Journal of fluid mechanics, 858, 760-786. Cambridge University Press
Kamal, C E M, sprittles, J, Snoeijer, J & Eggers, J 2019, ' Dynamic drying transition via free-surface cusps ', Journal of Fluid Mechanics, vol. 858, pp. 760-786 . https://doi.org/10.1017/jfm.2018.794

We study air entrainment by a solid plate plunging into a viscous liquid, theoretically and numerically. At dimensionless speeds $Ca=U\unicode[STIX]{x1D702}/\unicode[STIX]{x1D6FE}$ of order unity, a near-cusp forms due to the presence of a moving con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f8df47dad1ecab360092c5e0046eb7a
https://doi.org/10.1017/jfm.2018.794

Cox-Voinov theory with slip

Autor: Tak Shing Chan, James E. Sprittles, Jacco H. Snoeijer, Catherine Kamal, Jens Eggers

Publikováno v: Journal of fluid mechanics, 900:A8. Cambridge University Press
Chan, T, Kamal, C E M, Snoeijer, J H, Sprittles, J & Eggers, J G 2020, ' Cox-Voinov theory with slip ', Journal of Fluid Mechanics, vol. 900, A8 . https://doi.org/10.1017/jfm.2020.499

Most of our understanding of moving contact lines relies on the limit of small capillary number Ca . This means the contact line speed is small compared to the capillary speed γ/η , where γ is the surface tension and η the viscosity, so that the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::338e9c7de55cc5b272606c6d5ea40b33
https://research.utwente.nl/en/publications/a0f958a2-3319-49cd-99df-2e570811efc8

Liquid exfoliation of multilayer graphene in sheared solvents: A molecular dynamics investigation

Autor: Simon Gravelle, Lorenzo Botto, Catherine Kamal

Publikováno v: The Journal of Chemical Physics
Journal of Chemical Physics, 152(10)

Liquid-phase exfoliation, the use of a sheared liquid to delaminate graphite into few-layer graphene, is a promising technique for the large-scale production of graphene. But the micro and nanoscale fluid-structure processes controlling the exfoliati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::886db5d817495bd7b967d80236ee6864
https://doi.org/10.1063/1.5141515

Effect of hydrodynamic slip on the rotational dynamics of a thin Brownian platelet in shear flow

Autor: Simon Gravelle, Catherine Kamal, Lorenzo Botto

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021
Journal of Fluid Mechanics, 919

The classical theory by Jeffery predicts that, in the absence of Brownian fluctuations, a thin rigid platelet rotates continuously in a shear flow, performing periodic orbits. However, a stable orientation is possible if the surface of the platelet d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6b62bab0d52cc1b3a6215d0a2c7a8d0