Seminars

PMMH’s weekly seminar is held every Friday at 11 am (map)

Contact :
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
responsables-seminaires (arobase) pmmh.espci.fr

PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France

Tel : (33) 1 40 79 45 22


Séminaire PMMH - Farzam Zoueshtiagh (IEMN, Lille)

Dynamics and stability of a liquid-gas interface in the presence of micro-particles

This French-Japan-US collaborative study examines the influence of the micro-particles on the stability of the liquid-air interface. We will first revisit the effect of these particles on the dynamics of the interface in a confined "1D" geometry [1] with the formation of armored bubbles (fig. 1(a)) and will show that they can lead to the fingering pattern formation on a "2D" configuration (fig. 1(b)) [2]. We will then present the dynamics of a contact line impacting a single microparticle (fig. 2) or an array of micropillars [3,4].

FIG. 1 : (a) An armored bubble (b) Fingering patterns in a Hele-Shaw cell. FIG. 2 : Behaviour of an advancing liquid wedge being incident on a spherical particle of diameter 50 µm.

[1] Farzam Zoueshtiagh, Michael Baudoin, David Guérin, (2014) Capillary tube wetting induced by particles : towards armoured bubbles tailoring, Soft Matter, 2014,10, pp. 9403-9412.

[2] I. Bihi, M. Baudoin, J.E. Butler, C. Faille, F. Zoueshtiagh, (2016) Inverse Saffman-Taylor Experiments with Particles Lead to Capillarity Driven Fingering Instabilities, Phys. Rev. Lett. 117, 034501

[3] L. Mu, D. Kondo, M. Inoue, T. Kaneko, H. Yoshikawa, F. Zoueshtiagh, I. Ueno (2017) Sharp acceleration of a macroscopic contact line induced by a particle, Journal of Fluid Mechanics - Rapid Communications, Vol. 830, pp. 830-R1-R12.

[4] Lizhong Mu, Harunori N. Yoshikawa, Farzam Zoueshtiagh, Tetsuya Ogawa, Masahiro Motosuke, Ichiro Ueno (2019) Quick Liquid Propagation on a Linear Array of Micropillars, Langmuir, in press.

PDF - 771.2 kio

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Seminars  (4)

  • Séminaire PMMH - Francesca Borghi Università degli Studi di Milano
    Vendredi 20 juin de 11h00 à 12h00 - Salle réunion PMMH 1
    REPROGRAMMABLE HARDWARE FOR DATA PROCESSING AT THE EDGE : A NEW COMPUTING PARADIGM BASED ON NEUROMORPHIC SYSTEMS
    The brain's ability to perform efficient and fault-tolerant data processing is strongly related with its peculiar interconnected adaptive architecture, based on redundant neural circuits interacting at different scales. By emulating the brain's processing and learning mechanisms, computing technologies strive to (…)
  • Séminaire PMMH - Francesca Borghi Università degli Studi di Milano
    Vendredi 20 juin de 11h00 à 12h00 - Salle réunion PMMH 1
    REPROGRAMMABLE HARDWARE FOR DATA PROCESSING AT THE EDGE : A NEW COMPUTING PARADIGM BASED ON NEUROMORPHIC SYSTEMS
    The brain's ability to perform efficient and fault-tolerant data processing is strongly related with its peculiar interconnected adaptive architecture, based on redundant neural circuits interacting at different scales. By emulating the brain's processing and learning mechanisms, computing technologies strive to (…)
  • Séminaire PMMH - Salvatore Federico (University of Calgary, Canada)
    Vendredi 4 juillet de 11h00 à 12h00 - Salle réunion PMMH 1
    Continuum Mechanics of Hydrated Fibre-Reinforced Soft Tissues
    Biological tissues can be represented as bi-phasic continua, with a porous solid phase saturated by an interstitial fluid and reinforced by collagen fibers. This lecture will give an overview of the modelling techniques for fibre-reinforced porous composite materials with statistical orientation of the fibers. Both (…)
  • Séminaire PMMH - Salvatore Federico (University of Calgary, Canada)
    Vendredi 4 juillet de 11h00 à 12h00 - Salle réunion PMMH 1
    Continuum Mechanics of Hydrated Fibre-Reinforced Soft Tissues
    Biological tissues can be represented as bi-phasic continua, with a porous solid phase saturated by an interstitial fluid and reinforced by collagen fibers. This lecture will give an overview of the modelling techniques for fibre-reinforced porous composite materials with statistical orientation of the fibers. Both (…)

Information for the speakers

The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.

Archive 1996-2011
Other seminars in Paris and its surroundings :

Link to cofee seminar (internal, every Thursday)


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Seminars (3)

Practical information

Laboratoire : 01 40 79 45 22
Directeur : Ramiro GODOY DIANA
Codirecteur : Laurent DUCHEMIN
Administratrice : Frédérique AUGER (01 40 79 45 22)
Gestionnaire : Claudette BAREZ (01 40 79 58 53)
Courriel : dir (arobase) pmmh.espci.fr