13 citations · 37 across the 8 of their papers we have counts for
8 papers
Rare transitions between collective states in an active fluid via a weakly nonlinear reduction
Yves-Marie Ducimetière, Michael J. Shelley
We study a model for a dilute suspension of rod-like particles swimming at constant velocity in a Stokes flow. As the translational diffusivity of the particles decreases, a two-di…
Nonmodal amplitude equations
Yves-Marie Ducimetière, François Gallaire
We consider fluid flows for which the linearized Navier-Stokes operator is strongly non-normal. The responses of such flows to external perturbations are spanned by a generically v…
Noise-induced transitions past the onset of a steady symmetry-breaking bifurcation: the case of the sudden expansion
Yves-Marie Ducimetière, Edouard Boujo, François Gallaire
We consider fluid flows, governed by the Navier-Stokes equations, subject to a steady symmetry-breaking bifurcation and forced by a weak noise acting on a slow time scale. By gener…
On the liquid film instability of an internally coated horizontal tube
Shahab Eghbali, Yves-Marie Ducimetiere, Edouard Boujo +1
We study numerically and theoretically the gravity-driven flow of a viscous liquid film coating the inner side of a horizontal cylindrical tube and surrounding a shear-free dynamic…
Breaking one into three: surface-tension-driven droplet breakup in T-junctions
Jiande Zhou, Yves-Marie Ducimetière, Daniel Migliozzi +4
Droplet breakup is an important phenomenon in the field of microfluidics to generate daughter droplets. In this work, a novel breakup regime in the widely studied T-junction geomet…
Weak nonlinearity for strong nonnormality
Yves-Marie Ducimetière, Edouard Boujo, François Gallaire
We propose a theoretical approach to derive amplitude equations governing the weakly nonlinear evolution of nonnormal dynamical systems when they experience transient growth or res…
The effects of spanwise confinement on stratified shear instabilities
Yves-Marie Ducimetière, François Gallaire, Adrien Lefauve +1
We consider the influence of transverse confinement on the instability properties of velocity and density distributions reminiscent of those pertaining to exchange flows in stratif…
Single-spectrum prediction of kurtosis of water waves in a non-conservative model
D. Eeltink, A. Armaroli, Y. M. Ducimetière +2
We study statistical properties after a sudden episode of wind for water waves propagating in one direction. A wave with random initial conditions is propagated using a forced-damp…