Lagrangian Time Scale of Passive Rotation for Mesoscale Particles in Turbulence

Autor: Ankur D. Bordoloi, Evan Variano, Gautier Verhille

Publikováno v: Frontiers in Marine Science, Vol 7 (2020)

Turbulence induces rotation in the living and the non-living materials in the ocean. The time scale of rotation for a living organism is important in understanding an organism's feeding efficiency, mating, prey capture rate, etc. This time scale is a

Externí odkaz: https://doaj.org/article/1598b88552a342b382efdd85c1476ca2

Deformability of discs in turbulence

Autor: Gautier Verhille

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, 2022, 933, pp.A3. ⟨10.1017/jfm.2021.1035⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2022, 933, pp.A3. ⟨10.1017/jfm.2021.1035⟩

International audience; The aim of this study is to investigate experimentally the transition from a rigid regime to a deformed regime for flexible discs freely advected in turbulent flows. For a given disc, the amplitude of the deformation is expect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9da317d3ec4e50d76d4eccd3af3cc237
https://hal.science/hal-03517093

Fluid–structure instabilities in the axial balancing system of a turbo-pump

Autor: Florian Brunier-Coulin, Nicolas Vandenberghe, Gautier Verhille, Patrice Le Gal

Publikováno v: Journal of Sound and Vibration
Journal of Sound and Vibration, 2022, 538, pp.117193. ⟨10.1016/j.jsv.2022.117193⟩

International audience; The aim of this study is to investigate experimentally the transition from a rigid regime to a deformed regime for flexible discs freely advected in turbulent flows. For a given disc, the amplitude of the deformation is expect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d04fb6482a8e5a34a3191cb71be7771d
https://doi.org/10.1016/j.jsv.2022.117193

Laboratory model for plastic fragmentation in the turbulent ocean

Autor: Marie-Julie Dalbe, Gautier Verhille, Nicolas Vandenberghe, Benjamin Favier, Emmanuel Villermaux, Raphaël Guiné, Christophe Brouzet

Publikováno v: Physical Review Fluids
Physical Review Fluids, American Physical Society, 2021, 6 (2), ⟨10.1103/PhysRevFluids.6.024601⟩
Physical Review Fluids, 2021, 6 (2), ⟨10.1103/PhysRevFluids.6.024601⟩

We study the fragmentation of deformable and brittle fibers in the inertial range of turbulence using laboratory experiments and numerical simulations. The fragmentation process is shown to be limited at small scales by a physical cut-off length due

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eea7e43f2e0b0fe783f3f99b9993bc3f
https://doi.org/10.1103/physrevfluids.6.024601

Numerical modelling of long flexible fibers in homogeneous isotropic turbulence

Autor: Eric Climent, Blaise Delmotte, Gautier Verhille, Pascal Fede, Mostafa Sulaiman, Franck Plouraboué

Publikováno v: European Physical Journal E: Soft matter and biological physics
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2019, 42 (10), ⟨10.1140/epje/i2019-11894-7⟩
European Physical Journal E: Soft matter and biological physics, 2019, 42 (132), pp.0. ⟨10.1140/epje/i2019-11894-7⟩
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2019, 42 (132), pp.0. ⟨10.1140/epje/i2019-11894-7⟩

International audience; We numerically investigated the transport, deformation and buckling events of an isolated elastic fiber in Taylor-Green vortices and studied the dynamics of long filaments in homogeneous isotropic turbulence. The fiber is mode

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::558fca8568482f27eec39094bc8c1106
https://hal.archives-ouvertes.fr/hal-02389008