17 results on '"Miguet, Jonas"'
Search Results
2. Marginal regeneration-induced drainage of surface bubbles
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Miguet, Jonas, Pasquet, Marina, Rouyer, Florence, Fang, Yuan, and Rio, Emmanuelle
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Physics - Fluid Dynamics ,Condensed Matter - Soft Condensed Matter - Abstract
The prediction of the lifetime of surface bubbles necessitates a better understanding of the thinning dynamics of the bubble cap. In 1959, Mysel \textit{et al.} \cite{mysels1959soap}, proposed that \textit{marginal regeneration} i.e. the rise of patches, thinner than the film should be taken into account to describe the film drainage. Nevertheless, an accurate description of these buoyant patches and of their dynamics as well as a quantification of their contribution to the thinning dynamics is still lacking. In this paper, we visualize the patches, and show that their rising velocities and sizes are in good agreement with models respectively based on the balance of gravitational and surface viscous forces and on a Rayleigh-Taylor like instability \cite{Seiwert2017,Shabalina2019}. Our results suggest that, in an environment saturated in humidity, the drainage induced by their dynamics correctly describes the film drainage at the apex of the bubble within the experimental error bars. We conclude that the film thinning of soap bubbles is indeed controlled, to a large extent, by \textit{marginal regeneration} in the absence of evaporation.
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- 2021
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3. The Life of a Surface Bubble
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Miguet, Jonas, Rouyer, Florence, and Rio, Emmanuelle
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Condensed Matter - Soft Condensed Matter - Abstract
Surface bubbles are present in many industrial processes and in nature, as well as in CO$_2$ beverage. They have motivated many theoretical, numerical and experimental works. This paper presents the current knowledge on the physics of surface bubbles lifetime and shows the diversity of mechanisms at play that depend on the properties of the bath, the interfaces and the ambient air. In particular, we explore the role of drainage and evaporation on film thinning. We highlight the existence of two different scenarios depending on whether the film cap ruptures at large or small thickness compared to the thickness at which van der Waals interaction come in to play.
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- 2021
4. How does the presence of stevia glycosides impact surface bubbles stability?
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Miguet, Jonas, Fang, Yuan, Rouyer, Florence, and Rio, Emmanuelle
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Condensed Matter - Soft Condensed Matter - Abstract
The addition of sweeteners in fizzy beverages not only affects the sugar content but also the bubbles stability. In this article, we propose a model experiment, in which the lifetime of hundreds of single bubbles is measured, to assess the stability of bubbles in solutions containing either sucrose or sweeteners. We show that the bubbles are indeed more stable in presence of sweeteners, which are surface active molecules and adsorb at the interface. Additionally, we test an antifoam at different concentrations and show that our experiment allows to identify the best concentration to reproduce the stability obtained in sucrose when we replace this latter by a sweetener.
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- 2020
5. Stability of Big Surface Bubbles: Impact of Evaporation and Bubbles Size
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Miguet, Jonas, Pasquet, Marina, Rouyer, Florence, Fang, Yuan, and Rio, Emmanuelle
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Condensed Matter - Soft Condensed Matter - Abstract
Surface bubbles have attracted much interest in the past decades. In this article, we propose to explore the lifetime and thinning dynamics of centimetric surface bubbles. We study the impact of the bubbles size as well as that of the atmospheric humidity through a careful control and systematic variation of the relative humidity in the measuring chamber. We first adress the question of the drainage under saturated water vapor conditions and show that a model including both capillary and gravity driven drainage provides the best prediction for this process. Additionally, unprecedented statistics on the bubbles lifetimes confirm experimentally that this parameter is set by evaporation to leading order. We make use of a model based on the overall thinning dynamics of the thin film and assume a rupture thickness of the order 10-100 nm to obtain a good representation of these data. For experiments conducted far from saturation, the convective evaporation of the bath is shown to dominate the overall mass loss in the cap film due to evaporation.
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- 2019
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6. Coalescence of surface bubbles: The crucial role of motion-induced dynamic adsorption layer
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Zawala, Jan, Miguet, Jonas, Rastogi, Preetika, Atasi, Omer, Borkowski, Mariusz, Scheid, Benoit, and Fuller, Gerald G.
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- 2023
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7. Controlling the size and elastic modulus of in-aqueous alginate micro-beads.
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Cappello, Jean, Miguet, Jonas, Dewandre, Adrien, Ergot, Lucie, Gabriele, Sylvain, Septavaux, Jean, and Scheid, Benoit
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- 2024
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8. Thermal Antibubbles: When Thermalization of Encapsulated Leidenfrost Drops Matters
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Miguet, Jonas, primary, Scheid, Benoit, additional, Maquet, Laurent, additional, Darbois Texier, Baptiste, additional, and Dorbolo, Stéphane, additional
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- 2023
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9. Thermal antibubbles: when thermalization of encapsulated Leidenfrost drops matters
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Miguet, Jonas, Scheid, Benoît, Maquet, Laurent, Darbois-Texier, Baptiste, Dorbolo, Stéphane, Miguet, Jonas, Scheid, Benoît, Maquet, Laurent, Darbois-Texier, Baptiste, and Dorbolo, Stéphane
- Abstract
info:eu-repo/semantics/published
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- 2023
10. Coalescence of surface bubbles: The crucial role of motion-induced dynamic adsorption layer
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Zawala, J., Miguet, Jonas, Rastogi, Preetika, Atasi, Omer, Borkowski, Mariusz, Scheid, Benoît, Fuller, Gerald, Zawala, J., Miguet, Jonas, Rastogi, Preetika, Atasi, Omer, Borkowski, Mariusz, Scheid, Benoît, and Fuller, Gerald
- Abstract
The formation of motion-induced dynamic adsorption layers of surfactants at the surface of rising bubbles is a widely accepted phenomenon. Although their existence and formation kinetics have been theoretically postulated and confirmed in many experimental reports, the investigations primarily remain qualitative in nature. In this paper we present results that, to the best of our knowledge, provide a first quantitative proof of the influence of the dynamic adsorption layer on drainage dynamics of a single foam film formed under dynamic conditions. This is achieved by measuring the drainage dynamics of single foam films, formed by air bubbles of millimetric size colliding against the interface between n-octanol solutions and air. This was repeated for a total of five different surfactant concentrations and two different liquid column heights. All three steps preceding foam film rupture, namely the rising, bouncing and drainage steps, were sequentially examined. In particular, the morphology of the single film formed during the drainage step was analyzed considering the rising and bouncing history of the bubble. It was found that, depending on the motion-induced state of adsorption layer at the bubble surface during the rising and the bouncing steps, single foam film drainage dynamics can be spectacularly different. Using Direct Numerical Simulations (DNS), it was revealed that surfactant redistribution can occur at the bubble surface as a result of the bouncing dynamics (approach-bounce cycles), strongly affecting the interfacial mobility, and leading to slower rates of foam film drainage. Since the bouncing amplitude directly depends on the rising velocity, which correlates in turn with the adsorption layer of surfactants at the bubble surface during the rising step, it is demonstrated that the lifetime of surface bubbles should intimately be related to the history of their formation., SCOPUS: re.j, info:eu-repo/semantics/published
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- 2023
11. Marginal regeneration-induced drainage of surface bubbles
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Miguet, Jonas, primary, Pasquet, Marina, additional, Rouyer, Florence, additional, Fang, Yuan, additional, and Rio, Emmanuelle, additional
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- 2021
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12. The Life of a Surface Bubble
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Miguet, Jonas, primary, Rouyer, Florence, additional, and Rio, Emmanuelle, additional
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- 2021
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13. Amincissement et stabilité de bulles de surface
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Miguet, Jonas, Laboratoire de Physique des Solides (LPS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Université Paris Saclay (COmUE), Emmanuelle Rio, Florence Rouyer, STAR, ABES, Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), and Université Paris 11
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[PHYS]Physics [physics] ,Marginal regeneration ,Films minces ,Thin films ,Evaporation ,Régénération marginale ,Stabilité ,[PHYS.COND.CM-SCM] Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] ,Supersaturation ,Bulles ,Évaporation ,[PHYS.MECA.MEFL] Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] ,Bubbles ,[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] ,[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] ,Stability ,Sursaturation ,[PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] ,réegénération marginale - Abstract
The thesis work was done in collaboration with PepsiCo. The initial problem is based on the observation of the quantity of foam created when a supersaturated liquid, such as a carbonated beverage, is poured into a glass. Indeed, the addition of a very small amount of sweetener, representative of the concentrations found in sugar-free sodas, induces a significantly greater amount of foam than for traditional white sugar at a concentration 200 times greater. The sweetener used here is an extract of the plant stevia rebaudiana used for hundreds if not thousands of years in South America. Model experiments are proposed to study in detail two aspects of the problem: the rate of production of bubbles in the supersaturated medium and their rate of extinction at the surface. A first experiment aimed at characterizing the rate of production of bubble within a supersaturated medium. The basic notions are presented as well as an experimental procedure. On the other hand, studies on the stability of bubbles and films form the core of the manuscript. The main results of this work concern the stability and the drainage of bubbles at the surface of a liquid bath. Measurements of the impact of various ingredients commonly added in sodas on bubbles lifetime are presented. In addition, the effects of bubbles size and environmental humidity are measured on thousands of soapy bubbles, making use an automated setup. A model describing the drainage and the convective evaporation of the thin film is used to describe the measured lifetimes. Finally, a model describing the impact of marginal regeneration on the film thinning is presented and confronted with experimental data. The results show that this phenomenon controls the thinning of the film as a whole., Ce travail de thèse a été réalisé en partenariat avec PepsiCo. La problématique initiale repose sur l’observation de la quantité de mousse créée lorsque l’on verse un liquide sursaturé, comme une boisson gazeuse, dans un verre. En effet, l’ajout d’une très petite quantité d’édulcorant, représentative des concentrations trouvées dans les sodas sans sucre, induit une quantité de mousse significativement plus importante que pour du sucre blanc traditionnel à une concentration 200 fois plus importante. L’édulcorant utilisé ici est un extrait de la plante stevia rebaudiana, utilisée depuis des centaines voire des milliers d’années en Amérique du sud. Des expériences modèles sont proposées pour étudier en détail deux aspects du problème posé : le taux de production de bulles dans le milieu sursaturé et leur taux d’extinction à la surface. Une première expérience visant à caractériser le grossissement d’une bulle dans un milieu sursaturé a été mise en place. Les notions de base sont présentées ainsi qu’un dispositif expérimental. D’autre part, des études sur la stabilité de bulles et de films forment le cœur du manuscrit. Les résultats essentiels de ce travail concernent la stabilité et le drainage de bulles à la surface d’un bain liquide. Des mesures de l’impact de différents ingrédients communément ajoutés dans des sodas sur les temps de vie de bulles sont présentées. Par ailleurs, les effets de la taille et de l’humidité ambiante sont mesurés sur des milliers de bulles d’eau savonneuse grâce à une expérience automatisée. Un modèle décrivant le drainage et l’évaporation convective permet de décrire le temps de vie mesuré. En outre, un modèle décrivant l’impact de la régénération marginale sur l’amincissement des films est présenté et confronté à l’expérience. Les résultats montrent que ce phénomène contrôle l’amincissement du film dans son ensemble.
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- 2019
14. How does the presence of stevia glycosides impact surface bubbles stability?
- Author
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Miguet, Jonas, primary, Fang, Yuan, additional, Rouyer, Florence, additional, and Rio, Emmanuelle, additional
- Published
- 2020
- Full Text
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15. Stability of big surface bubbles: impact of evaporation and bubble size
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Miguet, Jonas, primary, Pasquet, Marina, additional, Rouyer, Florence, additional, Fang, Yuan, additional, and Rio, Emmanuelle, additional
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- 2020
- Full Text
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16. Observations of flooding and snow-ice formation in a thinner Arctic sea ice regime during the N-ICE2015 campaign: Influence of basal ice melt and storms
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Provost, Christine, Sennéchael, Nathalie, Miguet, Jonas, Itkin, Polona, Rösel, Anja, Koenig, Zoé, Villacieros Robineau, Nicolas, Granskog, Mats A., Austral, Boréal et Carbone (ABC), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), and Norwegian Polar Institute
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Arctic sea ice decline ,Slush ,010504 meteorology & atmospheric sciences ,[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] ,medicine.medical_treatment ,010502 geochemistry & geophysics ,Oceanography ,Atmospheric sciences ,01 natural sciences ,Geochemistry and Petrology ,Earth and Planetary Sciences (miscellaneous) ,medicine ,Sea ice ,Ice pack ,14. Life underwater ,ComputingMilieux_MISCELLANEOUS ,0105 earth and related environmental sciences ,geography ,geography.geographical_feature_category ,Snow ,Arctic ice pack ,Arctic geoengineering ,Geophysics ,Arctic ,13. Climate action ,Space and Planetary Science ,Geology - Abstract
Seven ice mass balance instruments deployed near 83°N on different first-year and second-year ice floes, representing variable snow and ice conditions, documented the evolution of snow and ice conditions in the Arctic Ocean north of Svalbard in January–March 2015. Frequent profiles of temperature and thermal diffusivity proxy were recorded to distinguish changes in snow depth and ice thickness with 2 cm vertical resolution. Four instruments documented flooding and snow-ice formation. Flooding was clearly detectable in the simultaneous changes in thermal diffusivity proxy, increased temperature, and heat propagation through the underlying ice. Slush then progressively transformed into snow-ice. Flooding resulted from two different processes: (i) after storm-induced breakup of snow-loaded floes and (ii) after loss of buoyancy due to basal ice melt. In the case of breakup, when the ice was cold and not permeable, rapid flooding, probably due to lateral intrusion of seawater, led to slush and snow-ice layers at the ocean freezing temperature (−1.88°C). After the storm, the instruments documented basal sea-ice melt over warm Atlantic waters and ocean-to-ice heat flux peaked at up to 400 W m−2. The warm ice was then permeable and flooding was more gradual probably involving vertical intrusion of brines and led to colder slush and snow-ice (−3°C). The N-ICE2015 campaign provided the first documentation of significant flooding and snow-ice formation in the Arctic ice pack as the slush partially refroze. Snow-ice formation may become a more frequently observed process in a thinner ice Arctic.
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- 2017
17. Influence of Evaporation on Soap Film Rupture
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Champougny, Lorène, primary, Miguet, Jonas, additional, Henaff, Robin, additional, Restagno, Frédéric, additional, Boulogne, François, additional, and Rio, Emmanuelle, additional
- Published
- 2018
- Full Text
- View/download PDF
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