En cliquant sur le bouton ci-dessous, vous pouvez consulter la liste des dernières publications scientifiques du laboratoire dans la "Collection HAL du M2P2" qui permet de faire des recherches par année, auteur, type de document (article scientifique, ouvrage, chapitre d'ouvrage, actes de conférence...), etc.
Pour un certain nombre d'articles, vous avez accès au texte intégral en format post-print ou pdf éditeur.
Siengdy Tann, Xi Deng, Yuya Shimizu, Raphaël Loubère, Feng Xiao. Solution property preserving reconstruction for finite volume scheme: a boundary variation diminishing+multidimensional optimal order detection framework. International Journal for Numerical Methods in Fluids, Wiley, 2020, 92 (6), pp.603-634. ⟨10.1002/fld.4798⟩. ⟨hal-02618891⟩ Plus de détails...
Simon Gsell, Etienne Loiseau, Umberto D’ortona, Annie Viallat, Julien Favier. Hydrodynamic model of directional ciliary-beat organization in human airways. Scientific Reports, Nature Publishing Group, 2020, 10 (8405), ⟨10.1038/s41598-020-64695-w⟩. ⟨hal-02614711⟩ Plus de détails...
In the lung, the airway surface is protected by mucus, whose transport and evacuation is ensured through active ciliary beating. the mechanisms governing the long-range directional organization of ciliary beats, required for effective mucus transport, are much debated. Here, we experimentally show on human bronchial epithelium reconstituted in-vitro that the dynamics of ciliary-beat orientation is closely connected to hydrodynamic effects. To examine the fundamental mechanisms of this self-organization process, we build a two-dimensional model in which the hydrodynamic coupling between cilia is provided by a streamwise-alignment rule governing the local orientation of the ciliary forcing. The model reproduces the emergence of the mucus swirls observed in the experiments. The predicted swirl sizes, which scale with the ciliary density and mucus viscosity, are in agreement with in-vitro measurements. A transition from the swirly regime to a long-range unidirectional mucus flow allowing effective clearance occurs at high ciliary density and high mucus viscosity. In the latter case, the mucus flow tends to spontaneously align with the bronchus axis due to hydrodynamic effects.
Simon Gsell, Etienne Loiseau, Umberto D’ortona, Annie Viallat, Julien Favier. Hydrodynamic model of directional ciliary-beat organization in human airways. Scientific Reports, Nature Publishing Group, 2020, 10 (8405), ⟨10.1038/s41598-020-64695-w⟩. ⟨hal-02614711⟩
Xiaotong Zhan, Sabine Michaud-Chevallier, Damien Hérault, Françoise Duprat. On-Line Analysis of the Heterogeneous Pd-Catalyzed Transfer Hydrogenation of p -Nitrophenol in Water with Formic Acid in a Flow Reactor. Organic Process Research and Development, American Chemical Society, 2020, 24 (5), pp.686-694. ⟨10.1021/acs.oprd.9b00291⟩. ⟨hal-02611832⟩ Plus de détails...
Xiaotong Zhan, Sabine Michaud-Chevallier, Damien Hérault, Françoise Duprat. On-Line Analysis of the Heterogeneous Pd-Catalyzed Transfer Hydrogenation of p -Nitrophenol in Water with Formic Acid in a Flow Reactor. Organic Process Research and Development, American Chemical Society, 2020, 24 (5), pp.686-694. ⟨10.1021/acs.oprd.9b00291⟩. ⟨hal-02611832⟩
Elena Alekseenko, B. Roux. Risk of wind-driven resuspension and transport of contaminated sediments in a narrow marine channel confluencing a wide lagoon. Estuarine, Coastal and Shelf Science, Elsevier, 2020, 237, pp.106649. ⟨10.1016/j.ecss.2020.106649⟩. ⟨hal-02524483⟩ Plus de détails...
Elena Alekseenko, B. Roux. Risk of wind-driven resuspension and transport of contaminated sediments in a narrow marine channel confluencing a wide lagoon. Estuarine, Coastal and Shelf Science, Elsevier, 2020, 237, pp.106649. ⟨10.1016/j.ecss.2020.106649⟩. ⟨hal-02524483⟩
Paul G. Chen, J Lyu, M Jaeger, M. Leonetti. Shape transition and hydrodynamics of vesicles in tube flow. Physical Review Fluids, American Physical Society, 2020, 5, pp.043602. ⟨hal-02415320v2⟩ Plus de détails...
The steady motion and deformation of a lipid-bilayer vesicle translating through a circular tube in low Reynolds number pressure-driven flow are investigated numerically using an axisymmetric boundary element method. This fluid-structure interaction problem is determined by three dimen-sionless parameters: reduced volume (a measure of the vesicle asphericity), geometric confinement (the ratio of the vesicle effective radius to the tube radius), and capillary number (the ratio of viscous to bending forces). The physical constraints of a vesicle--fixed surface area and enclosed volume when it is confined in a tube--determine critical confinement beyond which it cannot pass through without rupturing its membrane. The simulated results are presented in a wide range of reduced volumes [0.6, 0.98] for different degrees of confinement; the reduced volume of 0.6 mimics red blood cells. We draw a phase diagram of vesicle shapes and propose a shape transition line separating the parachutelike shape region from the bulletlike one in the reduced volume versus confinement phase space. We show that the shape transition marks a change in the behavior of vesicle mobility, especially for highly deflated vesicles. Most importantly, high-resolution simulations make it possible for us to examine the hydrodynamic interaction between the wall boundary and the vesicle surface at conditions of very high confinement, thus providing the limiting behavior of several quantities of interest, such as the thickness of lubrication film, vesicle mobility and its length, and the extra pressure drop due to the presence of the vesicle. This extra pressure drop holds implications for the rheology of dilute vesicle suspensions. Furthermore, we present various correlations and discuss a number of practical applications. The results of this work may serve as a benchmark for future studies and help devise tube-flow experiments.
Paul G. Chen, J Lyu, M Jaeger, M. Leonetti. Shape transition and hydrodynamics of vesicles in tube flow. Physical Review Fluids, American Physical Society, 2020, 5, pp.043602. ⟨hal-02415320v2⟩
Xi Deng, Pierre Boivin. Diffuse interface modelling of reactive multi-phase flows applied to a sub-critical cryogenic jet. Applied Mathematical Modelling, Elsevier, 2020, ⟨10.1016/j.apm.2020.04.011⟩. ⟨hal-02561937⟩ Plus de détails...
In order to simulate cryogenic H 2 − O 2 jets under subcritical condition, a numerical model is constructed to solve compressible reactive multi-component flows which involve complex multi-physics processes such as moving material interfaces, shock waves, phase transition and combustion. The liquid and reactive gaseous mixture are described by a homogeneous mixture model with diffusion transport for heat, momentum and species. A hybrid thermodynamic closure strategy is proposed to construct an equation of state (EOS) for the mixture. The phase transition process is modeled by a recent fast relaxation method which gradually reaches the thermo-chemical equilibrium without iterative process. A simplified transport model is also implemented to ensure the accurate behavior in the limit of pure fluids and maintain computational efficiency. Last, a 12-step chemistry model is included to account for hydrogen combustion. Then the developed numerical model is solved with the finite volume method where a low dissipation AUSM (advection upstream splitting method) Riemann solver is extended for multi-component flows. A homogeneous reconstruction strategy compatible with the homogeneous mixture model is adopted to prevent numerical oscillations across material interfaces. Having included these elements, the model is validated on a number of canonical configurations, first for multi-phase flows, and second for reactive flows. These tests allow recovery of the expected behavior in both the multiphase and reactive limits, and the model capability is further demonstrated on a 2D burning cryogenic H 2 − O 2 jet, in a configuration reminiscent of rocket engine ignition.
Xi Deng, Pierre Boivin. Diffuse interface modelling of reactive multi-phase flows applied to a sub-critical cryogenic jet. Applied Mathematical Modelling, Elsevier, 2020, ⟨10.1016/j.apm.2020.04.011⟩. ⟨hal-02561937⟩
Benjamin Kadoch, Wouter Bos, Kai Schneider. Efficiency of laminar and turbulent mixing in wall-bounded flows. Physical Review E , American Physical Society (APS), 2020, 101 (4), ⟨10.1103/PhysRevE.101.043104⟩. ⟨hal-02546585⟩ Plus de détails...
A turbulent flow mixes in general more rapidly a passive scalar than a laminar flow does. From an energetic point of view, for statistically homogeneous or periodic flows, the laminar regime is more efficient. However, the presence of walls may change this picture. We consider in this investigation mixing in two-dimensional laminar and turbulent wall-bounded flows using direct numerical simulation. We show that for sufficiently large Schmidt number, turbulent flows more efficiently mix a wall-bounded scalar field than a chaotic or laminar flow does. The mixing efficiency is shown to be a function of the Péclet number, and a phenomenological explanation yields a scaling law, consistent with the observations.
Benjamin Kadoch, Wouter Bos, Kai Schneider. Efficiency of laminar and turbulent mixing in wall-bounded flows. Physical Review E , American Physical Society (APS), 2020, 101 (4), ⟨10.1103/PhysRevE.101.043104⟩. ⟨hal-02546585⟩
Kanjana Ongkasin, Yasmine Masmoudi, Christian Wertheimer, Anna Hillenmayer, Kirsten Eibl-Lindner, et al.. Supercritical fluid technology for the development of innovative ophthalmic medical devices: Drug loaded intraocular lenses to mitigate posterior capsule opacification. European Journal of Pharmaceutics and Biopharmaceutics, Elsevier, 2020, 149, pp.248-256. ⟨10.1016/j.ejpb.2020.02.011⟩. ⟨hal-02513976⟩ Plus de détails...
Kanjana Ongkasin, Yasmine Masmoudi, Christian Wertheimer, Anna Hillenmayer, Kirsten Eibl-Lindner, et al.. Supercritical fluid technology for the development of innovative ophthalmic medical devices: Drug loaded intraocular lenses to mitigate posterior capsule opacification. European Journal of Pharmaceutics and Biopharmaceutics, Elsevier, 2020, 149, pp.248-256. ⟨10.1016/j.ejpb.2020.02.011⟩. ⟨hal-02513976⟩
Journal: European Journal of Pharmaceutics and Biopharmaceutics
Wenjun Liu, Paul G. Chen, Jalil Ouazzani, Qiusheng Liu. Thermocapillary flow transition in an evaporating liquid layer in a heated cylindrical cell. International Journal of Heat and Mass Transfer, Elsevier, 2020, 153, pp.119587. ⟨10.1016/j.ijheatmasstransfer.2020.119587⟩. ⟨hal-02488876⟩ Plus de détails...
Motived by recent ground-based and microgravity experiments investigating the interfacial dynamics of a volatile liquid (FC-72, P r = 12.34) contained in a heated cylindrical cell, we numerically study the thermocapillary-driven flow in such an evaporating liquid layer. Particular attention is given to the prediction of the transition of the axisymmetric flow to fully three-dimensional patterns when the applied temperature increases. The numerical simulations rely on an improved one-sided model of evaporation by including heat and mass transfer through the gas phase via the heat transfer Biot number and the evaporative Biot number. We present the axisymmetric flow characteristics, show the variation of the transition points with these Biot numbers, and more importantly elucidate the twofold role of the latent heat of evaporation in the stability; evaporation not only destabilizes the flow but also stabilizes it, depending upon the place where the evaporation-induced thermal gradients come into play. We also show that buoyancy in the liquid layer has a stabilizing effect, though its effect is insignificant. At high Marangoni numbers, the numerical simulations revealed smaller-scale thermal patterns formed on the surface of a thinner evaporating layer, in qualitative agreement with experimental observations. The present work helps to gain a better understanding of the role of a phase change in the thermocapillary instability of an evaporating liquid layer.
Wenjun Liu, Paul G. Chen, Jalil Ouazzani, Qiusheng Liu. Thermocapillary flow transition in an evaporating liquid layer in a heated cylindrical cell. International Journal of Heat and Mass Transfer, Elsevier, 2020, 153, pp.119587. ⟨10.1016/j.ijheatmasstransfer.2020.119587⟩. ⟨hal-02488876⟩
Journal: International Journal of Heat and Mass Transfer
Kai Zhang, Salman Verma, Arnaud Trouvé, Aymeric Lamorlette. A study of the canopy effect on fire regime transition using an objectively defined Byram convective number. Fire Safety Journal, Elsevier, 2020, 112, pp.102950. ⟨10.1016/j.firesaf.2020.102950⟩. ⟨hal-02469260⟩ Plus de détails...
Kai Zhang, Salman Verma, Arnaud Trouvé, Aymeric Lamorlette. A study of the canopy effect on fire regime transition using an objectively defined Byram convective number. Fire Safety Journal, Elsevier, 2020, 112, pp.102950. ⟨10.1016/j.firesaf.2020.102950⟩. ⟨hal-02469260⟩
