95 citations · 306 across the 17 of their papers we have counts for
19 papers · 1 filter
Wake instability past a sphere settling in a strongly stratified flow
Chang-Fan Mo, Matthieu J. Mercier, Jacques Magnaudet +1
The wake of a body moving across the isopycnals of a strongly stratified fluid is characterized by the presence of an intense jet which, under certain circumstances, may become uns…
Deformation and stability of a gas bubble in a biaxial straining flow
Aliénor Rivière, David Fabre, Jacques Magnaudet +1
Taking advantage of the recently developed L-ALE framework [Sierra-Ausin \textit{et al.}, Phys. Rev. Fluids {\bf{7}}, 113603 (2022)], we characterize the linear dynamics of an inco…
A sharp and conservative method for modeling interfacial flows with insoluble surfactants in the framework of a geometric volume-of-fluid approach
Zhong-Han Xue, Jacques Magnaudet, Jie Zhang
Insoluble surfactants adsorbed at liquid-liquid or gas-liquid interfaces alter interfacial tension, leading to variations in the normal stress jump and generating tangential Marang…
Rational constitutive law for the viscous stress tensor in incompressible two-phase flows: Derivation and tests against a 3D benchmark experiment
Jacques Magnaudet, Hadrien Bruhier, Samuel Mer +1
We analyze the representation of viscous stresses in the one-fluid formulation of the two-phase Navier-Stokes equations, the model on which all computational approaches making use…
Lateral migration and bouncing of a deformable bubble rising near a vertical wall. Part 2. Highly inertial regimes
Pengyu Shi, Jie Zhang, Jacques Magnaudet
The fate of deformable buoyancy-driven bubbles rising near a vertical wall under highly inertial conditions is investigated numerically. In the absence of path instability, simulat…
Lateral migration and bouncing of a deformable bubble rising near a vertical wall. Part 1. Moderately inertial regimes
Pengyu Shi, Jie Zhang, Jacques Magnaudet
The buoyancy-driven motion of a deformable bubble rising near a vertical hydrophilic wall is studied numerically. We focus on moderately inertial regimes in which the bubble underg…
Path instability of deformable bubbles rising in Newtonian liquids: A linear study
P. Bonnefis, J. Sierra-Ausin, D. Fabre +1
The first stages of the path instability phenomenon known to affect the buoyancy-driven motion of gas bubbles rising in weakly or moderately viscous liquids are examined thanks to…
A combined VOF-RANS approach for studying the evolution of incipient wind-generated waves over a viscous liquid
Florent Burdairon, Jacques Magnaudet
Recent laboratory experiments have revealed that important insights into the physical processes involved in the wind-driven generation of surface waves may be obtained by varying t…
Flow past a sphere translating along the axis of a rotating fluid: Revisiting numerically Maxworthy's experiments
Tristan Aurégan, Thomas Bonometti, Jacques Magnaudet
We compute the flow induced by the steady translation of a rigid sphere along the axis of a large cylindrical container filled with a low-viscosity fluid set in rigid-body rotation…
Second-order inertial forces and torques on a sphere in a viscous steady linear flow
Fabien Candelier, Rabah Mehaddi, Bernhard Mehlig +1
We compute the full set of second-order inertial corrections to the instantaneous force and torque acting on a small spherical rigid particle moving unsteadily in a general steady…
Spontaneous spinning of a dichloromethane drop on an aqueous surfactant solution
Dolachai Boniface, Julien Sebilleau, Jacques Magnaudet +1
We report a series of experiments carried out with a dichloromethane drop deposited on the surface of an aqueous solution containing a surfactant, cetyltrimethylammonium bromide. A…
Three-dimensional dynamics of a pair of deformable bubbles rising initially in line. Part 2: Highly inertial regimes
Jie Zhang, Ming-Jiu Ni, Jacques Magnaudet
The buoyancy-driven dynamics of a pair of gas bubbles released in line is investigated numerically, focusing on highly inertial conditions under which isolated bubbles follow non-s…
Hydrodynamic torque on a steadily rotating slender cylinder
Jean-Lou Pierson, Mohammed Kharrouba, Jacques Magnaudet
Using fully-resolved simulations, we investigate the torque experienced by a finite-length circular cylinder rotating steadily perpendicularly to its symmetry axis. The aspect rati…
Flow structure and loads over inclined cylindrical rodlike particles and fibers
Mohammed Kharrouba, Jean-Lou Pierson, Jacques Magnaudet
The flow past a fixed finite-length circular cylinder, the axis of which makes a nonzero angle with the incoming stream, is studied through fully-resolved simulations, from creepin…
Three-dimensional dynamics of a pair of deformable bubbles rising initially in line. Part 1: Moderately inertial regimes
Jie Zhang, Ming-Jiu Ni, Jacques Magnaudet
The buoyancy-driven motion of two identical gas bubbles released in line in a liquid at rest is examined with the help of highly resolved simulations, focusing on moderately inerti…
Near-wall forces on a neutrally-buoyant spherical particle in an axisymmetric stagnation-point flow
Jacques Magnaudet, Micheline Abbas
Hydrodynamic forces acting on a neutrally-buoyant spherical particle immersed in a wall-bounded axisymmetric stagnation point flow (Hiemenz-Homann flow) are predicted, based on a s…
A phase inversion benchmark for multiscale multiphase flows
J. -L. Estivalezes, W. Aniszewski, F. Auguste +11
A series of benchmarks based on the physical situation of "phase inversion" between two immiscible liquids is presented. These benchmarks aim at progressing toward the direct numer…
Time-dependent lift and drag on a rigid body in a viscous steady linear flow
Fabien Candelier, Bernhard Mehlig, Jacques Magnaudet
We compute the leading-order inertial corrections to the instantaneous force acting on a rigid body moving with a time-dependent slip velocity in a linear flow field, assuming that…
Influence of slip on the dynamics of two-dimensional wakes
Dominique Legendre, Eric Lauga, Jacques Magnaudet
We study numerically the two-dimensional flow past a circular cylinder as a prototypical transitional flow, and investigate the influence of a generic slip boundary condition on th…