Jacques Magnaudet

Senior Researcher at CNRS, Fluid Mechanics Institute of Toulouse (IMFT) CNRS & University of Toulouse
90 %
Libre accès
92
Documents
Contact

Présentation

I am a senior researcher at CNRS (the French National Center for Scientific Research), working at the Fluid Mechanics Institute of Toulouse (IMFT).
My abridged CV may be found here https://smallpdf.com/fr/file#s=dca9f9fa-d995-477a-b534-55ce82175939
A more complete version can be downloaded at https://smallpdf.com/fr/file#s=d07cedc5-f1ba-4dd1-9207-5c0ec1eaa330

My research focuses on several fundamental aspects of hydrodynamics and turbulence in two-phase flows and inhomogeneous fluids, mostly studied by means of computational and theoretical approaches. I also closely collaborate with experimentalists and occasionally directly supervise simple experiments myself.

I am especially involved in two main areas:

the dynamics of particles, drops and bubbles, most notably:

  • the determination of forces acting on these objects when they move in non-uniform or time-dependent flows;
  • their hydrodynamic interactions with similar neighboring entities or walls;
  • the motion and possible trapping of particles and bubbles in vortical structures and the way they may collectively alter/destroy v>ortices or generate specific flow patterns;
  • how phase change (evaporation, boiling, condensation) or contamination by surfactants modifies the dynamics of rising bubbles and spreading drops;
  • the topological changes that may be experienced by large rising bubbles or drops spreading on a liquid surface in the presence of Marangoni effect;
  • the path instability and subsequent style of paths of bubbles and rigid bodies freely moving under the effect of an external force (such as gravity/ buoyancy);
  • the dynamics of particles and bubbles crossing a sharp interface separating immiscible liquids;
  • the specific flow structure and dynamics of rigid particles settling or rising in density-stratified and rapidly-rotating fluids.

the structure, mixing properties and near-surface interactions of non-standard inhomogeneous turbulence, especially:

  • inter-component transfers and boundary layer structure in free-surface turbulence;
  • high-Schmidt-number mass transfer across walls and free surfaces;
  • the peculiar structure of turbulence and mean currents beneath surface waves;
  • the generation of surface waves on viscous liquids by a turbulent air flow;
  • the physics of gravitationally-induced turbulence in open and confined geometries;
  • the dynamics of confined high-Reynolds-number gravity currents.

Other topics I am or have been involved in include:

  • complex two-phase flows (liquid-liquid phase inversion, sudden emptying of liquid-filled containers);
  • fluid slip at rigid surfaces (influence on the dynamics of bluff-body wakes, generalization of the Navier condition to rough surfaces, drag reduction by air-filled micro-cavities);
  • dynamics of droplet chains and living cells in microchannels;
  • numerical techniques for two-phase flows (interface capture, modeling of viscous stresses).

To study these problems and phenomena, I use and sometimes develop a variety of techniques and methodologies. Some of them are analytical, including perturbation approaches, reciprocal theorems and vector field decomposition. Most others are computational. In particular, I developed, first by myself, then with successive generations of students and colleagues, the in-house code JADIM that solves the Navier-Stokes equations, possibly coupled with the transport of passive or active scalars such as temperature, density or surfactant concentration. This code includes boundary-fitted and fixed-grid approaches thanks to which interfacial phenomena may be accurately captured. It allows fully-resolved simulations of two- and three-phase incompressible flows, possibly with moving rigid bodies and interfacial topological changes, from viscous-dominated to fully turbulent regimes.

Together with my students and colleagues, I employ these various and complementary tools to dissect and model the physical mechanisms at play in the above types of flow. This frequently yields predictions in the form of generic laws that are then used to understand, predict and sometimes optimize the properties of complex flows of engineering or geophysical relevance.

More specifically, through various collaborations with industrial and institutional partners, I have been directly involved in a variety of problems related to nuclear safety (cooling circuits, accident scenarios), steelmaking, chemical engineering (gas separation, fluidization, microfluidics), oil recovery (mixing in wellbores), transportation (interfacial phenomena in aircraft and launcher tanks, bubble-induced drag reduction), defense (bubbly wakes, container emptying, inertial confinement), air-sea interactions (wind-induced waves and near-surface turbulence, CO2 transfer and sequestration), marine pollution (microplastics, oil spills) and volcanology (viscous mixing in magmatic chimneys).

A list of my publications in peer-reviewed journals may be found at:

https://www-webofscience-com.insis.bib.cnrs.fr/wos/woscc/citation-report/f43ba4d9-03a0-43ca-86fd-b78f0bfb6fa2-016e0ff02e
https://scholar.google.fr/citations?user=bVYTlS4AAAAJ&hl=fr&oi=ao

Records of some talks I gave over the last few years are available through the links below:

• Falling styles of gravity/buoyancy-driven disks, ICTS Distinguished lecture (Bengaluru, 2019):
https://www.youtube.com/watch?v=UUZzh740_Ls

• Interplay of a pair of rising bubbles released in line, Multiphase Flows - Advances and Future Directions (online, 2021):
https://www.youtube.com/watch?v=A4J6AqcESy0

• Particles and bubbles getting through interfaces and stratified layers, IJMF Spotlight seminar (online, 2023):
https://www.youtube.com/watch?v=wlsu8H9lbgQ

• Maxworthy's 1970 experiment on a computer, Perspectives in Hydrodynamics (IIT Bombay, 2024):
https://www.youtube.com/watch?v=i2kPQqBZVMA

• In the skin and folds of a pulsating drop, Waves and Instabilities on Fluid Interfaces (IIT Bombay, 2024):
https://www.youtube.com/watch?v=kXOjPCH3DAs

• From Leonardo to Stabfem: The long story of path instability of rising bubbles made short, Sectional lecture, 26th ICTAM (Daegu, 2024):
https://app.videas.fr/6b0ce61c-3f1b-4648-93ca-a38860f74061/

Short videos illustrating some of the physical problems I investigated are also available here:

Buoyancy-driven turbulent mixing of two immiscible fluids in an inclined pipe (paper here https://hal.science/hal-01102240/document)
Two fluids with slightly different densities, identical viscosities and no interfacial tension are unstably superimposed in a long circular pipe inclined by 15 degrees to the vertical. The fluids are slightly viscous, so that the flow that sets in quickly becomes turbulent. The first of these DNS-based videos provides an overview of the flow dynamics throughout the pipe; colors correspond to isopycnal surfaces, from C=0.9 (blue) to C=0.1 (red), with C=1 referring to the heavy fluid. The second video provides a closer view at the dynamics of the ascending fluid by visualizing the evolution of the C=0.1 iso-surface. The latter is colored by the "swirling strength" intensity, a criterion that helps identify three-dimensional vortical structures:
https://app.videas.fr/1ff8f78d-3acf-491b-8dac-bec6e094303b/
https://app.videas.fr/9444fdfc-379b-4625-b776-230d54858b4c/

Falling styles of gravity-driven disks (paper here https://hal.science/hal-00908124/file/auguste_10246.pdf)
An infinitely thin rigid disk is released from rest broadside on in a slightly viscous fluid. The type of path followed by the disk depends on the ratio of the inertial and viscous forces it experiences and on the disk-to-fluid inertia ratio. The first of these DNS-based videos displays the fall of a thin disk performing large-amplitude planar zigzags. In the second video, the disk has more inertia with respect to the fluid and performs complete tumbles; colors reveal the wake structure, based on the lambda2 criterion:
https://app.videas.fr/6c38932f-296b-4117-bea5-fc73005e59a5/
https://app.videas.fr/ed05d78e-6954-46e1-bd47-c65ba0df5c30/

Les gouttes qui pulsent, a short outreach video (in French) produced by CNRS https://images.cnrs.fr/video/6499, based on this paper:
https://www.nature.com/articles/s41467-018-03201-3
A more complete video showing the full experimental sequence analyzed in the paper is available at https://app.videas.fr/893529ac-a0a2-40dd-bc6d-52660c4d8cb5/
A millimeter-sized dichloromethane drop is released on an aqueous bath in the presence of a surfactant, CTAB. The drop spreads over the bath surface. Evaporation-driven Marangoni stresses develop and induce a rim at the edge of the dichloromethane film. The Rayleigh-Plateau instability produces successive circular droplet crowns, while an evaporative instability induces radial wrinkles in late stages. Time variations of interfacial tensions resulting from droplet ejections and specific properties of CTAB make the system able to perform successive large-amplitude pulsations.

Fragmentation of the tail past a steel marble crossing an interface separating two immiscible liquids
(paper here https://hal.science/hal-01660835/file/pierson_19284.pdf)
Steel marbles settle in a silicone oil layer before they cross the interface separating this layer from a water bath. Because of their large density, they easily cross the interface and settle within the water bath with a significant speed, towing a long column (tail) of silicone oil. Provided the oil viscosity is not too large, the Kelvin-Helmholtz instability that develops soon at the tail surface yields a massive fragmentation phenomenon by which the tail breaks up into a myriad of droplets. The silicone oil if 50 times more viscous than water in the first experimental sequence, and is only 5 times more viscous in the second one: https://app.videas.fr/57b39efd-0a2f-4581-bf8f-7a7aa9728263/
https://app.videas.fr/cec4763e-1b05-43bd-8a70-b2ac9192eacb/

Air bubbles crossing an interface separating two immiscible viscous liquids
(paper here https://hal.science/hal-00908876/file/Bonhomme_10245.pdf)
These three videos illustrate the complex influence of the viscosity jump encountered by a bubble crossing an interface separating two liquids, and that of the bubble size which dictates its equilibrium shape in the lower fluid. In the first video, an air bubble with a diameter d≈7mm rises first through a very viscous water-glycerin mixture, then through a silicone oil 50 times less viscous. The bubble is slightly larger (d≈11mm) and the two fluids have nearly equal viscosities in the second video. The third video shows a d≈20mm bubble rising first in water, then through a silicone oil 10 times more viscous. As the three videos make clear, increasing the bubble size yields strikingly different shapes (spheroidal, then spherical cap and finally toroidal), while varying the viscosity ratio has a deep impact on the breakthrough dynamics as well as on the geometry and volume of the tail of lower fluid entrained by the bubble.
https://app.videas.fr/e0a6cc53-6082-4cd0-9ade-e7a6dded4502/
https://app.videas.fr/d721e1c7-5753-4534-9f7d-5dc248ec2a6b/
https://app.videas.fr/46490fae-8c9b-48a9-a247-16f07434ea8a/

Domaines de recherche

Physique [physics] Sciences de l'ingénieur [physics]

Publications

7
6
6
5
5
4
4
4
4
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Publications

Deposit thumbnail

Rational constitutive law for the viscous stress tensor in incompressible two-phase flows: Derivation and tests against a three-dimensional benchmark experiment

Jacques Magnaudet , Hadrien Bruhier , Samuel Mer , Thomas Bonometti

Physical Review Fluids, 2025, 10 (7), pp.074001. ⟨10.1103/9j1f-w77d⟩

Article dans une revue hal-05172771v1
Deposit thumbnail

Particle-laden flows

Cristian Marchioli , Mickael Bourgoin , Filippo Coletti , Rodney Fox , Jacques Magnaudet et al.

International Journal of Multiphase Flow, In press, 191, pp.105291. ⟨10.1016/j.ijmultiphaseflow.2025.105291⟩

Article dans une revue (article de synthèse) hal-05119368v2
Deposit thumbnail

Lateral migration and bouncing of a deformable bubble rising near a vertical wall. Part 2. Highly inertial regimes

Pengyu Shi , Jie Zhang , Jacques Magnaudet

Journal of Fluid Mechanics, 2025, 1013, pp.A19. ⟨10.1017/jfm.2025.10167⟩

Article dans une revue hal-05118867v1
Deposit thumbnail

Path instability of deformable bubbles rising in Newtonian liquids: A linear study

Paul Bonnefis , Javier Sierra Ausin , David Fabre , Jacques Magnaudet

Journal of Fluid Mechanics, 2024, 980, pp.A19. ⟨10.1017/jfm.2024.19⟩

Article dans une revue hal-04455958v2
Deposit thumbnail

Lateral migration and bouncing of a deformable bubble rising near a vertical wall. Part 1. Moderately inertial regimes

Pengyu Shi , Jie Zhang , Jacques Magnaudet

Journal of Fluid Mechanics, 2024, 998, pp.A8. ⟨10.1017/jfm.2024.865⟩

Article dans une revue hal-04744765v1
Deposit thumbnail

When, how, and why the path of an air bubble rising in pure water becomes unstable

Paul Bonnefis , David Fabre , Jacques Magnaudet

Proceedings of the National Academy of Sciences of the United States of America, 2023, 120 (11), ⟨10.1073/pnas.2300897120⟩

Article dans une revue hal-04024265v1
Deposit thumbnail

Flow past a sphere translating along the axis of a rotating fluid: revisiting numerically Maxworthy's experiments

Tristan Aurégan , Thomas Bonometti , Jacques Magnaudet

Journal of Fluid Mechanics, 2023, 967, pp.A25. ⟨10.1017/jfm.2023.469⟩

Article dans une revue hal-04165883v1
Deposit thumbnail

A combined VOF-RANS approach for studying the evolution of incipient two-dimensional wind-driven waves over a viscous liquid

Florent Burdairon , Jacques Magnaudet

European Journal of Mechanics - B/Fluids, 2023, 102, pp.150-167. ⟨10.1016/j.euromechflu.2023.08.001⟩

Article dans une revue hal-04189597v1
Deposit thumbnail

Second-order inertial forces and torques on a sphere in a viscous steady linear flow

Fabien Candelier , Rabah Mehaddi , Bernhard Mehlig , Jacques Magnaudet

Journal of Fluid Mechanics, 2023, Journal of Fluid Mechanics, 954, pp.A25. ⟨10.1017/jfm.2022.1015⟩

Article dans une revue hal-03859012v1
Deposit thumbnail

Dynamics of a gas bubble in a straining flow: Deformation, oscillations, self-propulsion

Javier Sierra-Ausin , Paul Bonnefis , Antonia Tirri , David Fabre , Jacques Magnaudet

Physical Review Fluids, 2022, 7 (11), pp.113603. ⟨10.1103/PhysRevFluids.7.113603⟩

Article dans une revue hal-03858749v1
Deposit thumbnail

Spontaneous spinning of a dichloromethane drop on an aqueous surfactant solution

Dolachai Boniface , Julien Sebilleau , Jacques Magnaudet , Véronique Pimienta

Journal of Colloid and Interface Science, 2022, 625, pp.990-1001. ⟨10.1016/j.jcis.2022.05.154⟩

Article dans une revue hal-03760210v1
Deposit thumbnail

Three-dimensional dynamics of a pair of deformable bubbles rising initially in line.

Jie Zhang , Ming-Jiu Ni , Jacques Magnaudet

Journal of Fluid Mechanics, 2022, 943, pp.A10. ⟨10.1017/jfm.2022.416⟩

Article dans une revue hal-03700589v1
Deposit thumbnail

A phase inversion benchmark for multiscale multiphase flows

Jean-Luc Estivalèzes , Wojciech Aniszewski , Franck Auguste , Yue Ling , Ludovic Osmar et al.

Journal of Computational Physics, 2022, 450, pp.110810. ⟨10.1016/j.jcp.2021.110810⟩

Article dans une revue hal-03419715v2
Deposit thumbnail

Drag and lift forces on a rigid sphere immersed in a wall-bounded linear shear flow

Pengyu Shi , Roland Rzehak , Dirk Lucas , Jacques Magnaudet

Physical Review Fluids, 2021, 6 (10), pp.104309. ⟨10.1103/physrevfluids.6.104309⟩

Article dans une revue hal-03413058v1
Deposit thumbnail

Hydrodynamic torque on a slender cylinder rotating perpendicularly to its symmetry axis

Jean-Lou Pierson , Mohammed Kharrouba , Jacques Magnaudet

Physical Review Fluids, 2021, 6 (9), pp.094303. ⟨10.1103/PhysRevFluids.6.094303⟩

Article dans une revue hal-03356843v1
Deposit thumbnail

Near-wall forces on a neutrally buoyant spherical particle in an axisymmetric stagnation-point flow

Jacques Magnaudet , Micheline Abbas

Journal of Fluid Mechanics, 2021, Special JFM volume in celebration of the George K. Batchelor centenary, 914, pp.A18. ⟨10.1017/jfm.2020.398⟩

Article dans une revue hal-03345254v1
Deposit thumbnail

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

Journal of Fluid Mechanics, 2021, 920, pp.A16. ⟨10.1017/jfm.2021.429⟩

Article dans une revue hal-03382547v1
Deposit thumbnail

Flow structure and loads over inclined cylindrical rodlike particles and fibers

Mohammed Kharrouba , Jean-Lou Pierson , Jacques Magnaudet

Physical Review Fluids, 2021, 6 (4), pp.044308. ⟨10.1103/PhysRevFluids.6.044308⟩

Article dans une revue hal-03215136v1
Deposit thumbnail

Hydrodynamic forces on a clean spherical bubble translating in a wall-bounded linear shear flow

Pengyu Shi , Roland Rzehak , Dirk Lucas , Jacques Magnaudet

Physical Review Fluids, 2020, 5 (7), pp.073601. ⟨10.1103/PhysRevFluids.5.073601⟩

Article dans une revue hal-02933780v1
Deposit thumbnail

Revisiting the Taylor-Culick approximation: Retraction of an axisymmetric filament

Jean-Lou Pierson , Jacques Magnaudet , Edson Soares , Stéphane Popinet

Physical Review Fluids, 2020, 5 (7), pp.073602. ⟨10.1103/PhysRevFluids.5.073602⟩

Article dans une revue hal-02747137v1
Deposit thumbnail

Near-wall dynamics of a neutrally buoyant spherical particle in an axisymmetric stagnation point flow

Qing Li , Micheline Abbas , Jeffrey F. Morris , Eric Climent , Jacques Magnaudet

Journal of Fluid Mechanics, 2020, 892, pp.A32. ⟨10.1017/jfm.2020.185⟩

Article dans une revue hal-02735362v1
Deposit thumbnail

Particles, Drops, and Bubbles Moving Across Sharp Interfaces and Stratified Layers

Jacques Magnaudet , Matthieu Mercier

Annual Review of Fluid Mechanics, 2020, 52 (1), pp.61-91. ⟨10.1146/annurev-fluid-010719-060139⟩

Article dans une revue hal-02383288v1
Deposit thumbnail

Core mechanisms of drag enhancement on bodies settling in a stratified fluid

Jie Zhang , Matthieu Mercier , Jacques Magnaudet

Journal of Fluid Mechanics, 2019, 875, pp.622-656. ⟨10.1017/jfm.2019.524⟩

Article dans une revue hal-02194243v1
Deposit thumbnail

Compliant riblets: Problem formulation and effective macrostructural properties

Giuseppe Antonio Zampogna , Sahrish B Naqvi , Jacques Magnaudet , Alessandro Bottaro

Journal of Fluids and Structures, 2019, 91, pp.102708. ⟨10.1016/j.jfluidstructs.2019.102708⟩

Article dans une revue hal-02383276v1
Deposit thumbnail

Emptying of a bottle: How a robust pressure-driven oscillator coexists with complex two-phase flow dynamics

Samuel Mer , Olivier Praud , Jacques Magnaudet , Véronique Roig

International Journal of Multiphase Flow, 2019, 118, pp.23-36. ⟨10.1016/j.ijmultiphaseflow.2019.05.012⟩

Article dans une revue hal-02152629v1
Deposit thumbnail

Time-dependent lift and drag on a rigid body in a viscous steady linear flow

Fabien Candelier , Bernhard Mehlig , Jacques Magnaudet

Journal of Fluid Mechanics, 2019, 864, pp.554-595. ⟨10.1017/jfm.2019.23⟩

Article dans une revue hal-02052051v1
Deposit thumbnail

Generalized slip condition over rough surfaces

Giuseppe Antonio Zampogna , Jacques Magnaudet , Alessandro Bottaro

Journal of Fluid Mechanics, 2019, 858, pp.407-436. ⟨10.1017/jfm.2018.780⟩

Article dans une revue hal-01924709v1
Deposit thumbnail

Marangoni-driven flower-like patterning of an evaporating drop spreading on a liquid surface

Florian Wodlei , Julien Sebilleau , Jacques Magnaudet , Véronique Pimienta

Nature Communications, 2018, 9, pp.820. ⟨10.1038/s41467-018-03201-3⟩

Article dans une revue hal-01717626v1
Deposit thumbnail

Inertial settling of a sphere through an interface. Part 1. From sphere flotation to wake fragmentation

Jean-Lou Pierson , Jacques Magnaudet

Journal of Fluid Mechanics, 2018, vol. 835, pp. 762-807. ⟨10.1017/jfm.2017.747⟩

Article dans une revue hal-01660835v1
Deposit thumbnail

Inertial settling of a sphere through an interface. Part 2. Sphere and tail dynamics

Jean-Lou Pierson , Jacques Magnaudet

Journal of Fluid Mechanics, 2018, vol. 835, pp. 808-851. ⟨10.1017/jfm.2017.748⟩

Article dans une revue hal-01660645v1
Deposit thumbnail

The emptying of a bottle as a test case for assessing interfacial momentum exchange models for Euler–Euler simulations of multi-scale gas-liquid flows

Samuel Mer , Olivier Praud , Hervé Neau , Nicolas Merigoux , Jacques Magnaudet et al.

International Journal of Multiphase Flow, 2018, vol. 106, pp. 109-124. ⟨10.1016/j.ijmultiphaseflow.2018.05.002⟩

Article dans une revue hal-01801495v1
Deposit thumbnail

Path oscillations and enhanced drag of light rising spheres

Franck Auguste , Jacques Magnaudet

Journal of Fluid Mechanics, 2018, vol. 841, pp. 228-266. ⟨10.1017/jfm.2018.100⟩

Article dans une revue hal-01715490v1
Deposit thumbnail

Paths and wakes of deformable nearly spheroidal rising bubbles close to the transition to path instability

José Carlos Cano-Lozano , Carlos Martinez-Bazan , Jacques Magnaudet , Joël Tchoufag

Physical Review Fluids, 2016, 1 (5), pp.053604. ⟨10.1103/PhysRevFluids.1.053604⟩

Article dans une revue hal-01379970v1
Deposit thumbnail

A global stability approach to wake and path instabilities of nearly oblate spheroidal rising bubbles

José Carlos Cano-Lozano , Joël Tchoufag , Jacques Magnaudet , Carlo Martínez-Bazán

Physics of Fluids, 2016, vol. 28 (n° 1), pp. 014102. ⟨10.1063/1.4939703⟩

Article dans une revue hal-01330745v1
Deposit thumbnail

Buoyancy-induced turbulence in a tilted pipe

Yannick Hallez , Jacques Magnaudet

Journal of Fluid Mechanics, 2015, vol. 762, pp. 435-477. ⟨10.1017/jfm.2014.638⟩

Article dans une revue hal-01102240v1
Deposit thumbnail

Weakly Nonlinear Model with Exact Coefficients for the Fluttering and Spiraling Motion of Buoyancy-Driven Bodies

Joël Tchoufag , David Fabre , Jacques Magnaudet

Physical Review Letters, 2015, vol. 115 (n° 11), pp. 1-5. ⟨10.1103/PhysRevLett.115.114501⟩

Article dans une revue hal-01196195v1
Deposit thumbnail

Global linear stability analysis of the wake and path of buoyancy-driven disks and thin cylinders

Joël Tchoufag , David Fabre , Jacques Magnaudet

Journal of Fluid Mechanics, 2014, vol. 740, pp. 278-311. ⟨10.1017/jfm.2013.642⟩

Article dans une revue hal-00958683v1
Deposit thumbnail

Linear instability of the path of a freely rising spheroidal bubble

Joël Tchoufag , Jacques Magnaudet , David Fabre

Journal of Fluid Mechanics, 2014, vol. 751, pp. 754 R4-1 1. ⟨10.1017/jfm.2014.340⟩

Article dans une revue hal-01015463v1
Deposit thumbnail

Linear stability and sensitivity of the flow past a fixed oblate spheroidal bubble

Joël Tchoufag , Jacques Magnaudet , David Fabre

Physics of Fluids, 2013, vol. 25, ⟨10.1063/1.4804552⟩

Article dans une revue hal-00874779v1
Deposit thumbnail

Falling styles of disks

Franck Auguste , Jacques Magnaudet , David Fabre

Journal of Fluid Mechanics, 2013, vol. 719, pp.388-405. ⟨10.1017/jfm.2012.602⟩

Article dans une revue hal-00908124v1
Deposit thumbnail

The onset of unsteadiness of two-dimensional bodies falling or rising freely in a viscous fluid: a linear study

Pauline Assemat , David Fabre , Jacques Magnaudet

Journal of Fluid Mechanics, 2012, vol. 690, pp. 173-202. ⟨10.1017/jfm.2011.419⟩

Article dans une revue hal-00908868v1
Deposit thumbnail

Wake-induced oscillatory paths of bodies freely rising or falling in fluids

Patricia Ern , Frederic Risso , David Fabre , Jacques Magnaudet

Annual Review of Fluid Mechanics, 2012, 44 (1), pp.97-121. ⟨10.1146/annurev-fluid-120710-101250⟩

Article dans une revue hal-03468415v1
Deposit thumbnail

The steady oblique path of buoyancy-driven disks and spheres

David Fabre , Joël Tchoufag , Jacques Magnaudet

Journal of Fluid Mechanics, 2012, vol. 707, pp. 24-36. ⟨10.1017/jfm.2012.231⟩

Article dans une revue hal-00877022v1
Deposit thumbnail

Inertial dynamics of air bubbles crossing a horizontal fluid-fluid interface

Romain Bonhomme , Jacques Magnaudet , Fabien Duval , Bruno Piar

Journal of Fluid Mechanics, 2012, vol. 707, pp. 405-443. ⟨10.1017/jfm.2012.288⟩

Article dans une revue hal-00908876v1
Deposit thumbnail

A 'reciprocal' theorem for the prediction of loads on a body moving in an inhomogeneous flow at arbitrary Reynolds number - CORRIGENDUM

Jacques Magnaudet

Journal of Fluid Mechanics, 2011, vol. 689, pp.605-606. ⟨10.1017/jfm.2011.475⟩

Article dans une revue hal-00908114v1
Deposit thumbnail

A quasi-static approach to the stability of the path of heavy bodies falling within a viscous fluid

David Fabre , Pauline Assemat , Jacques Magnaudet

Journal of Fluids and Structures, 2011, vol. 27, pp. 758-767. ⟨10.1016/j.jfluidstructs.2011.03.013⟩

Article dans une revue hal-00908806v1
Deposit thumbnail

Simulation of neutrophil motion and deformation: influence of rheology and flow configuration

Mélanie Le Roux , Jacques Magnaudet

Computer Methods in Biomechanics and Biomedical Engineering, 2011, vol. 14, pp. 107-109. ⟨10.1080/10255842.2011.592377⟩

Article dans une revue hal-00908036v1
Deposit thumbnail

A 'reciprocal' theorem for the prediction of loads on a body moving in an inhomogeneous flow at arbitrary Reynolds number

Jacques Magnaudet

Journal of Fluid Mechanics, 2011, vol. 689, pp.564-604. ⟨10.1017/jfm.2011.363⟩

Article dans une revue hal-00907975v1
Deposit thumbnail

Dynamique de bulles traversant l'interface séparant deux liquides

Romain Bonhomme , Jacques Magnaudet , Bruno Piar

Mechanics & Industry, 2011, vol. 12, pp. 163-168. ⟨10.1051/meca/2011108⟩

Article dans une revue hal-00912372v1
Deposit thumbnail

Bifurcations in the wake of a thick circular disk

Franck Auguste , David Fabre , Jacques Magnaudet

Theoretical and Computational Fluid Dynamics, 2010, vol. 24, pp. 305-313. ⟨10.1007/s00162-009-0144-3⟩

Article dans une revue istex hal-00877297v1
Deposit thumbnail

Turbulence-induced secondary motion in a buoyancy-driven flow in a circular pipe.

Yannick Hallez , Jacques Magnaudet

Physics of Fluids, 2009, 21 (8), pp.1-4. ⟨10.1063/1.3213246⟩

Article dans une revue hal-03565009v1
Deposit thumbnail

Experimental and numerical investigations of flow structure and momentum transport in a turbulent buoyancy-driven flow inside a tilted tube.

Jemil Znaien , Yannick Hallez , Frederic Moisy , Jacques Magnaudet , Jean-Pierre Hulin et al.

Physics of Fluids, 2009, 21 (11), pp.1-10. ⟨10.1063/1.3259972⟩

Article dans une revue hal-03565022v1
Deposit thumbnail

Reversal of the lift force on an oblate bubble in a weakly viscous linear shear flow

Saturnin Richard Adoua , Dominique Legendre , Jacques Magnaudet

Journal of Fluid Mechanics, 2009, 628, pp.23-41. ⟨10.1017/S0022112009006090⟩

Article dans une revue istex hal-03561328v1
Deposit thumbnail

A numerical investigation of horizontal viscous gravity currents

Yannick Hallez , Jacques Magnaudet

Journal of Fluid Mechanics, 2009, 630, pp.71-91. ⟨10.1017/S0022112009006454⟩

Article dans une revue istex hal-03564994v1
Deposit thumbnail

Bifurcations and symmetry breaking in the wake of axisymmetric bodies

David Fabre , Franck Auguste , Jacques Magnaudet

Physics of Fluids, 2008, vol. 20, pp. 1-4. ⟨10.1063/1.2909609⟩

Article dans une revue hal-00874366v1
Deposit thumbnail

Wall effects in non-Boussinesq density currents

Thomas Bonometti , S. Balachandar , Jacques Magnaudet

Journal of Fluid Mechanics, 2008, vol. 616, pp. 445-475. ⟨10.1017/S002211200800414X⟩

Article dans une revue hal-00862825v1
Deposit thumbnail

Hydrodynamic structures of droplets in square micro-channels

Flavie Sarrazin , Thomas Bonometti , Laurent Prat , Christophe Gourdon , Jacques Magnaudet

Microfluidics and Nanofluidics, 2008, 5 (1), pp.131-137. ⟨10.1007/s10404-007-0233-9⟩

Article dans une revue istex hal-03579901v1
Deposit thumbnail

Effects of channel geometry on buoyancy-driven mixing

Yannick Hallez , Jacques Magnaudet

Physics of Fluids, 2008, 20 (5), pp.1-9. ⟨10.1063/1.2918379⟩

Article dans une revue hal-03574511v1

Laboratory observations of mean flows under surface gravity waves

S.G. Monismith , E.A. Cowen , H.M. Nepf , Jacques Magnaudet , Laurent Thais

Journal of Fluid Mechanics, 2007, 573, pp.131-147. ⟨10.1017/S0022112006003594⟩

Article dans une revue istex hal-00147558v1
Deposit thumbnail

On the dispersion of solid particles in a liquid agitated by a bubble swarm

Thomas Bonometti , Jacques Magnaudet , Pascal Gardin

Metallurgical and Materials Transactions B, 2007, vol. 38B, pp. 739-750. ⟨10.1007/s11663-007-9085-7⟩

Article dans une revue istex hal-00862695v1
Deposit thumbnail

Preferential accumulation of bubbles in Couette-Taylor flow patterns

Éric Climent , M. Simonnet , Jacques Magnaudet

Physics of Fluids, 2007, 1, pp.0. ⟨10.1063/1.2752839⟩

Article dans une revue hal-03592229v1
Deposit thumbnail

An interface-capturing method for incompressible two-phase flows. Validation and application to bubble dynamics

Thomas Bonometti , Jacques Magnaudet

International Journal of Multiphase Flow, 2007, vol. 33, pp. 109-133. ⟨10.1016/j.ijmultiphaseflow.2006.07.003⟩

Article dans une revue hal-00862680v1

Bubble capture by a propeller

François Caillé , Christophe Clanet , Jacques Magnaudet

Journal of Fluid Mechanics, 2006, 560, pp.311. ⟨10.1017/S0022112006000747⟩

Article dans une revue istex hal-02357011v1
Deposit thumbnail

Transition from spherical cap to toroidal bubbles

Thomas Bonometti , Jacques Magnaudet

Physics of Fluids, 2006, vol. 18, pp. 1-12. ⟨10.1063/1.2196451⟩

Article dans une revue hal-00862651v1
Deposit thumbnail

Dynamics of a two-dimensional upflowing mixing layer seeded with bubbles : bubble dispersion and effect of two-way coupling.

Éric Climent , Jacques Magnaudet

Physics of Fluids, 2006, 1 (10), pp.103304-103305. ⟨10.1063/1.2363968⟩

Article dans une revue hal-03595586v1

Experimental and numerical study of droplets hydrodynamics in microchannels

Flavie Sarrazin , Thomas Bonometti , Karine Loubière , Laurent Prat , Christophe Gourdon et al.

AIChE Journal, 2006, 5 (12), pp.4061-4070. ⟨10.1002/aic.11033⟩

Article dans une revue hal-03598005v1
Deposit thumbnail

Experimental characterization of the gas phase during bottle emptying

Samuel Mer , Olivier Praud , Jacques Magnaudet , Véronique Roig

10th International Conference on Multiphase Flow, May 2019, Rio de Janeiro, Brazil

Communication dans un congrès hal-04728850v1

Simulating the emptying of a water bottle with a multi-scale two-fluid approach

Samuel Mer , Olivier Praud , Nicolas Merigoux , Jacques Magnaudet , Véronique Roig

2nd International Workshop of Non-Invasive Experimental Tools and Numerical Methods for the Investigation of Non-Reactive and Reactive Gas-Liquid Flows, Jun 2018, Hambourg (Germany), Germany

Communication dans un congrès hal-04728788v1
Deposit thumbnail

Simulating the emptying of a water bottle with a multi-scale two-fluid approach

Samuel Mer , Olivier Praud , Jacques Magnaudet , Véronique Roig

5th Joint US-European Fluids Engineering Division Summer Meeting, ASME, Jul 2018, Montreal (Canada), Canada. ⟨10.1115/FEDSM2018-83196⟩

Communication dans un congrès hal-04728811v1

Simulating the emptying of a water bottle with a multi-scale two-fluid approach

Samuel Mer , Olivier Praud , Hervé Neau , Nicolas Mérigoux , Jacques Magnaudet et al.

1st NEPTUNE_CFD user meeting, Apr 2018, Saclay (92), France

Communication dans un congrès hal-04727883v1
Deposit thumbnail

Assessment of multi-scale two-fluid approach by simulating the emptying of a bottle

Samuel Mer , Olivier Praud , Hervé Neau , Nicolas Mérigoux , Jacques Magnaudet et al.

Dispersed Two-Phase Flows, SHF, Sep 2018, Toulouse, France

Communication dans un congrès hal-04728828v1
Deposit thumbnail

Chute d'une sphère au travers de l'interface séparant deux fluides visqueux

Jean-Lou Pierson , Jacques Magnaudet

CFM 2015 - 22ème Congrès Français de Mécanique, Aug 2015, Lyon, France

Communication dans un congrès hal-03444932v1

Path instabilities of heavy bodies in free fall in a viscous fluid: wake dynamics vs. aerodynamic effects

David Fabre , Joël Tchoufag , Kemal Selvam , Jacques Magnaudet

66th APS DFD Annual Meeting, Nov 2013, Pittsburg, Etats-Unis, United States

Communication dans un congrès hal-04481514v1
Deposit thumbnail

Weakly nonlinear analysis of the flutter motion of thin cylinders

Joël Tchoufag , David Fabre , Jacques Magnaudet

Ercoftac International Symposium on Unsteady separation in Fluid-Structure Interaction, Jun 2013, Mykonos, Greece

Communication dans un congrès hal-00918002v1

The rich life of light rising spheres

Alice Lieu , Franck Auguste , Jacques Magnaudet

66th APS DFD Annual Meeting, Nov 2013, Pittsburg, Etats-Unis, United States

Communication dans un congrès hal-04481492v1

The hard life of air bubbles crossing a fluid/fluid interface

Jacques Magnaudet

Complex Fluids & Flows in industry & nature II, Jul 2013, Vancouver (Canada), Canada

Communication dans un congrès hal-04481446v1

Linear stability of disks falling or rising freely in a viscous fluid

Joël Tchoufag , David Fabre , Jacques Magnaudet

9th Euromech Fluid Mechanics Conference, Sep 2012, Rome, Italy

Communication dans un congrès hal-00918006v1

Dynamics of air bubbles crossing a horizontal interface

Romain Bonhomme , Jacques Magnaudet , Fabien Duval , Bruno Piar

9th Euromech Fluid Mechanics Conference, Sep 2012, Rome, Italy

Communication dans un congrès hal-00918004v1
Deposit thumbnail

A generalized reciprocal theorem for predicting the force and torque on bodies moving in an unhomogeneous flow at arbitrary reynolds number

Jacques Magnaudet

23rd International Conference on Theoretical and Applied Mechanics, Aug 2012, Beijing, China

Communication dans un congrès hal-00910910v1
Deposit thumbnail

Dynamique de bulles traversant l'interface séparant deux liquides

Romain Bonhomme , Jacques Magnaudet , Bruno Piar

CFM 2011 - 20ème Congrès Français de Mécanique, Aug 2011, Besançon, France

Communication dans un congrès hal-03421147v1
Deposit thumbnail

Simulation de la déformation des neutrophiles : influence de la rhéologie et du type d'écoulement

Mélanie Le Roux , Jacques Magnaudet

CFM 2011 - 20ème Congrès Français de Mécanique, Aug 2011, Besançon, France

Communication dans un congrès hal-03421232v1
Deposit thumbnail

Développement d'une méthode de simulation d'écoulements diphasiques turbulents

Serge Adjoua , Jacques Magnaudet

CFM 2009 - 19ème Congrès Français de Mécanique, Aug 2009, Marseille, France

Communication dans un congrès hal-03378680v1
Deposit thumbnail

Simulation aux grandes échelles d'écoulements turbulents à phases séparées par une méthode lagrangienne

Irène Renaud-Assemat , Jacques Magnaudet

CFM 2009 - 19ème Congrès Français de Mécanique, Aug 2009, Marseille, France

Communication dans un congrès hal-03378575v1
Deposit thumbnail

Mélange de fluides miscibles sous l'effet de la gravité dans un tube incliné.

Yannick Hallez , Jacques Magnaudet

CFM 2007 - 18ème Congrès Français de Mécanique, Aug 2007, Grenoble, France

Communication dans un congrès hal-03361083v1
Deposit thumbnail

Le sillage de bulles des navires

François Caille , Christophe Clanet , Jacques Magnaudet

CFM 2007 - 18ème Congrès Français de Mécanique, Aug 2007, Grenoble, France

Communication dans un congrès hal-03362142v1
Deposit thumbnail

Sur la transition entre calottes sphériques et bulles toriques

Thomas Bonometti , Jacques Magnaudet

CFM 2007 - 18ème Congrès Français de Mécanique, Aug 2007, Grenoble, France

Communication dans un congrès hal-03362009v1
Deposit thumbnail

Ecoulement d'un fluide visqueux autour d'un disque en incidence frontale

Franck Auguste , David Fabre , Jacques Magnaudet

CFM 2007 - 18ème Congrès Français de Mécanique, Aug 2007, Grenoble, France

Communication dans un congrès hal-03362031v1
Deposit thumbnail

Forces et couple sur une bulle ellipsoïdale plongée dans un écoulement cisaillé

Saturnin Richard Adoua , Dominique Legendre , Jacques Magnaudet

CFM 2007 - 18ème Congrès Français de Mécanique, Aug 2007, Grenoble, France

Communication dans un congrès hal-03362123v1

Large eddy simulations of Rayleigh-Taylor turbulence

Xavier Silvani , Jacques Magnaudet

5th International Symposium on Turbulence, Heat and Mass Transfer, Sep 2006, Dubrovnik, Croatia. pp.117

Communication dans un congrès hal-00189734v1