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In charged water microdroplets, which occur in nature or in the lab upon ultrasonication or in electrospray processes, the thermodynamics for reactive chemistry can be dramatically altered relative to the bulk phase. Here, we provide a…

Chemical Physics · Physics 2024-05-06 Joseph P. Heindel , R. Allen LaCour , Teresa Head-Gordon

Despite its relevance in biology and engineering, the molecular mechanism driving cavitation in water remains unknown. Using computer simulations, we investigate the structure and dynamics of vapor bubbles emerging from metastable water at…

We investigate by direct numerical simulations the flow that rising bubbles cause in an originally quiescent fluid. We employ the Eulerian-Lagrangian method with two-way coupling and periodic boundary conditions. In order to be able to…

Fluid Dynamics · Physics 2009-12-29 Irene Mazzitelli , Detlef Lohse

The response of underwater structures to a near-field explosion is coupled with the dynamics of the explosion bubble and the surrounding water. This multiphase fluid-structure interaction process is investigated using a model problem that…

Fluid Dynamics · Physics 2023-09-15 Wentao Ma , Xuning Zhao , Christine Gilbert , Kevin Wang

Despite a rigorous analysis of nonlinear electrohydrodynamics of a liquid droplet deformation in air, its influence on the surrounding gas phase has received less attention. We observed, air circulations created due to large deformation…

Fluid Dynamics · Physics 2022-03-08 Pramodt Srinivasula , Debabrat Biswal

The electrohydrodynamics of vesicle suspensions is characterized by studying their pairwise interactions in applied DC electric fields in two dimensions. In the dilute limit, the rheology of the suspension is shown to vary nonlinearly with…

Soft Condensed Matter · Physics 2019-05-01 Bowei Wu , Shravan Veerapaneni

Bubble formation in liquid xenon underneath a Thick Gaseous Electron Multiplier (THGEM) electrode immersed in liquid xenon was observed with a CCD camera. With voltage across the THGEM, the appearance of bubbles was correlated with that of…

Instrumentation and Detectors · Physics 2015-09-09 E. Erdal , L. Arazi , V. Chepel , M. L. Rappaport , D. Vartsky , A. Breskin

A brief analysis of the physics and effects of electrolytic gas evolution is presented. Aspects considered include bubble nucleation, growth, and detachment, enhancement of mass and heat transfer, and decrease of apparent electrical…

Chemical Physics · Physics 2015-06-15 Cesar A. C. Sequeira , Diogo M. F. Santos , Biljana Sljukic , Luis Amaral

Recent reports on the production of hydrogen peroxide (H$_2$O$_2$) on the surface of condensed water microdroplets without the addition of catalysts or additives have sparked significant interest. The underlying mechanism is speculated to…

Soft Condensed Matter · Physics 2021-09-08 Nayara H. Musskopf , Adair Gallo , Peng Zhang , Jeferson Petry , Himanshu Mishra

A hydrophilic liquid, such as water, forms hydrogen bonds with a hydrophilic substrate. The strength and locality of the hydrogen bonding interactions prohibit slip of the liquid over the substrate. The question then arises how the contact…

Fluid Dynamics · Physics 2018-07-11 Petter Johansson , Berk Hess

In this work, we present experiments and simulations on the nucleation and successive dynamics of laser-induced bubbles inside liquid droplets in free-fall motion, i.e. a case with a free boundary in all directions. The droplets of a…

Fluid Dynamics · Physics 2023-08-07 Juan Manuel Rosselló , Hendrik Reese , K. Ashoke Raman , Claus-Dieter Ohl

Oblique collision of solid particles with surfaces has been a topic of extensive study in Newtonian mechanics, which also explains the motion of bubbles and droplets to some extent. Here, we observe that air bubbles exhibit a backflipping…

Fluid Dynamics · Physics 2022-09-01 Alireza Hooshanginejad , Anuj Baskota , Sunghwan Jung

The feature of interaction electrons with neutral matter attracts large attention of physicists many directions. The exchange interaction in particular leads to creating of bubbles - spherical cavities with electron in center. Good object…

Mesoscale and Nanoscale Physics · Physics 2014-02-07 A. V. Smorodin , V. A. Nikolaenko

Late-stage coarsening in off-critical vapour-liquid phase separation is re-examined. In the limit of bubbles of vapour distributed throughout a continuous liquid phase, it is argued that coarsening proceeds via inertial hydrodynamic bubble…

Statistical Mechanics · Physics 2009-11-07 Patrick B. Warren

First order phase transitions are violent phenomena that occur when the state of the universe evolves abruptly from one vacuum to another. A \emph{direct} phase transition connects a local vacuum to a deeper vacuum of the zero--temperature…

High Energy Physics - Phenomenology · Physics 2024-10-29 Giulio Barni , Simone Blasi , Miguel Vanvlasselaer

In gas evolving electrolysis, bubbles grow at electrodes due to a diffusive influx from oversaturation generated locally in the electrolyte by the electrode reaction. When considering electrodes of micrometer-size resembling catalytic…

Fluid Dynamics · Physics 2024-11-11 Mengyuan Huang , Chao Sun , Kerstin Eckert , Xianren Zhang , Gerd Mutschke

One-dimensional numerical simulations based on hybrid Eulerian-Lagrangian method are performed to study the interactions between propagating shocks and dispersed evaporating water droplets. Two-way coupling for exchanges of mass, momentum,…

Fluid Dynamics · Physics 2021-03-22 Zhiwei Huang , Huangwei Zhang

Motivated by recent experiments on biomimetic membranes exposed to several aqueous phases, we theoretically study the morphology of a membrane in contact with a liquid droplet formed via aqueous phase separation. We concentrate on membranes…

Soft Condensed Matter · Physics 2012-02-07 Halim Kusumaatmaja , Reinhard Lipowsky

In this paper, we present a theoretical, experimental, and numerical study of the dynamics of cavitation bubbles inside a droplet suspended in another host fluid. On the theoretical side, we provided a modified Rayleigh collapse time and…

Fluid Dynamics · Physics 2024-01-02 Shuai Li , Zhesheng Zhao , A-Man Zhang , Rui Han

Bubbles may form when imaging liquids with in situ liquid-cell electron microscopy. Fluid dynamics videos show beam-induced bubble nucleation and growth. By examining the bubble formation and growth process, we hope to gain a better…

Fluid Dynamics · Physics 2012-10-15 Joseph M. Grogan , Frances M. Ross , Haim H. Bau