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Aerobreakup of fluid droplets under the influence of impulsively generated high-speed gas flow using an open-ended shock tube is studied using experiments and numerical simulations. Breakup of mm-sized droplets at high Weber number was…

Fluid Dynamics · Physics 2022-06-24 James Leung , Mohana Gurunadhan , Shyam Menon

The lifetime $\tau$ of an isothermal and purely diffusively dissolving droplet in a host liquid scales as $\tau \sim R_0^2$ with its initial radius $R_0$ [Langmuir, Phys. Rev. 12, 368 (1919)]. For a droplet dissolving due to natural…

Fluid Dynamics · Physics 2022-02-15 Binglin Zeng , Yuliang Wang , Christian Diddens , Harold J. W. Zandvliet , Detlef Lohse

Even a small fraction of nanoparticles in fluids affects the splashing behavior of a droplet upon impact on a smooth surface. Nanofluid drop impact onto a smooth sapphire substrate is experimentally investigated over wide ranges of Reynolds…

Fluid Dynamics · Physics 2021-08-13 Yunus Tansu Aksoy , Pinar Eneren , Erin Koos , Maria Rosaria Vetrano

The dissolution or growth of a droplet in a host liquid is an important part for processes like chemical extraction, chromatography or emulsification. In this work we look at the dissolution of a pair of vertically aligned droplets immersed…

Fluid Dynamics · Physics 2022-01-25 Ricardo Arturo Lopez de la Cruz , Christian Diddens , Xuehua Zhang , Detlef Lohse

Nanodroplets on a solid surface (i.e. surface nanodroplets) have practical implications for high-throughput chemical and biological analysis, lubrications, lab-on-chip devices, and near-field imaging techniques. Oil nanodroplets can be…

Fluid Dynamics · Physics 2017-06-07 Xuehua Zhanga , Ziyang Lu , Huanshu Tan , Lei Bao , Yinghe He , Chao Sun , Detlef Lohse

We simulate a two-dimensional array of droplets being compressed between two walls. The droplets are adhesive due to an attractive depletion force. As one wall moves toward the other, the droplet array is compressed and eventually induced…

Soft Condensed Matter · Physics 2024-01-23 Pablo Eduardo Illing , Jean-Christophe Ono-dit-Biot , Kari Dalnoki-Veress , Eric R. Weeks

Droplet-droplet interactions is ubiquitous in various applications ranging from medical diagnostics to enhancing and optimizing liquid jet propulsion. We employ an experimental technique where the laser pulse interacts with a micron-sized…

Fluid Dynamics · Physics 2022-10-14 D. Chaitanya Kumar Rao , Awanish Pratap Singh , Saptarshi Basu

The impact of nanometer sized drops on solid surfaces is studied using molecular dynamics simulations. Equilibrated floating drops consisting of short chains of Lennard-Jones liquids with adjustable volatility are directed normally onto an…

Soft Condensed Matter · Physics 2015-06-11 Joel Koplik , Rui Zhang

Water in oil emulsions have a wide range of applications from chemical technology to microfluidics, where the stability of water droplets is of paramount importance. Here using an accessible and easily reproducible experimental setup we…

Soft Condensed Matter · Physics 2021-12-21 Tamás Gerecsei , Rita Ungai-Salanki , Andras Saftics , Imre Derényi , Robert Horvath , Balint Szabo

Recently, it was shown how the primary steps of solvation of a single Na$^+$ ion, instantly created at the surface of a nanometer-sized droplet of liquid helium, can be followed at the atomic level [Albrectsen et al. Nature $\textbf{623}$,…

The atomisation of suspension containing liquid and dispersed particles is prevalent in many applications. Previous studies of droplet breakup mainly focused on homogeneous fluids, and the heterogeneous effect of particles on the breakup…

Fluid Dynamics · Physics 2024-03-19 Zhikun Xu , Tianyou Wang , Zhizhao Che

We experimentally investigate the dissolution of microscale sessile alcohol droplets in water under the influence of impermeable vertical confinement. The introduction of confinement suppresses the mass transport from the droplet to bulk…

Fluid Dynamics · Physics 2021-01-13 Saptarshi Basu , D. Chaitanya Kumar Rao , Ankur Chattopadhyay , Joita Chakraborty

Controlling the spatial distribution of liquid droplets on surfaces via surface energy patterning can be used to control material delivery to specified regions via selective liquid/solid wetting. While studies of the equilibrium shape of…

Soft Condensed Matter · Physics 2007-05-23 Gary S. Grest , David R. Heine , Edmund B. Webb

Droplets on a liquid-immersed solid surface are key elements in many applications, such as high-throughput chemical analysis and droplet-templated porous materials. Such surface droplets dissolve when the surrounding liquid is…

Fluid Dynamics · Physics 2019-09-25 Qingguang Xie , Jens Harting

Droplet-based interphase synthesis provides means to produce nanoparticles with low polydispersity by controlling mass transport through droplet dynamics. An experimentally validated model, based on coupled computational fluid dynamics with…

Fluid Dynamics · Physics 2023-04-17 Vivekananda Bal , Rajdip Bandyopadhyaya

Liquid droplets usually wet smooth and homogeneous substrates isotropically. Recent research works have revealed that droplets sit, slide and spread anisotropically on uniaxially stretched soft substrates, showing an enhanced wettability…

Soft Condensed Matter · Physics 2022-12-02 Yixuan Du , Elmar Bonaccurso , Jianwei Guo , Kai Uhlig , Longquan Chen , Binyu Zhao , Günter K. Auernhammer

We develop a model for the thermodynamics and evaporation dynamics of aerosol droplets of a liquid such as water, surrounded by the gas. When the temperature and the chemical potential (or equivalently the humidity) are such that the vapour…

Soft Condensed Matter · Physics 2023-11-23 A. J. Archer , B. D. Goddard , R. Roth

Droplet microfluidics, in which micro-droplets serve as individual reactors, has enabled a wide range of high-throughput biochemical processes. Unlike solid wells typically used in current biochemical assays, droplets are subject to…

Soft Condensed Matter · Physics 2022-06-03 Ya Gai , Andrea Montessori , Sauro Succi , Sindy K. Y. Tang

Droplets of a pure fluid, such as water, in an open container surrounded by gas, are thermodynamically unstable and evaporate quickly. In a recent paper [Archer et al. J. Chem. Phys. {\bf 159}, 194403 (2023)] we employed lattice density…

Soft Condensed Matter · Physics 2025-12-17 Melih Gül , Andrew J Archer , Benjamin D Goddard , Roland Roth

Studies of nanoparticle-based optical matter have only considered spherical constituents. Yet nanoparticles with other shapes are expected to have different local electromagnetic field distributions and therefore interactions with neighbors…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 Delphine Coursault , Nishant Sule , John Parker , Ying Bao , Norbert F. Scherer
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