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In this theoretical and numerical study, we show how spatially extended fluctuations can influence and dominate the dynamics of a fluid filled elastic blister as is deforms onto a pre-wetted solid substrate. To describe the blister…

流体动力学 · 物理学 2018-05-23 Andreas Carlson

Hypothesis: Surrounding fluids affect critically drop wetting dynamics in many applications involving viscous environments. Although macroscopic effects of outer fluid viscosity on contact line motion have been documented, the extent to…

流体动力学 · 物理学 2025-12-15 Yingjie Fei , Qindan Zhang , Youguang Ma , Huai-Zhi Li

We experimentally study anomalous diffusion of ultra-cold atoms in a one dimensional polarization optical lattice. The atomic spatial distribution is recorded at different times and its dynamics and shape are analyzed. We find that the…

量子物理 · 物理学 2012-03-05 Yoav Sagi , Miri Brook , Ido Almog , Nir Davidson

Disordered nanostructures are commonly encountered in many nanophotonic systems, from colloid dispersions for sensing, to heterostructured photocatalysts. Randomness, however, imposes severe challenges for nanophotonics modeling, often…

In this study, the thermocapillary actuation behavior of an odd viscous droplet on a uniformly heated surface is numerically investigated using a phase-field-based lattice Boltzmann method. The numerical results reveal that unlike a…

流体动力学 · 物理学 2025-10-17 Shan Jiang , He Yan , Chenxia Xie , Lei Wang

We report an in situ transmission electron microscopy observation of an indium droplet flowing on a silicon nitride membrane with a coating layer of hydrogenated amorphous silicon (a-Si:H), with the production of in-plane c-Si nanowire in…

材料科学 · 物理学 2020-11-03 Zheng Fan

We examine theoretically the spreading of a viscous liquid drop over a thin film of uniform thickness, assuming the liquid's viscosity is regulated by the concentration of a solute that is carried passively by the spreading flow. The solute…

流体动力学 · 物理学 2017-05-09 Feng Xu , Oliver E. Jensen

Particles with ligand-receptor contacts bind and unbind fluctuating "legs" to surfaces, whose fluctuations cause the particle to diffuse. Quantifying the diffusion of such "nanoscale caterpillars" is a challenge, since binding events often…

软凝聚态物质 · 物理学 2022-03-21 Sophie Marbach , Jeana Aojie Zheng , Miranda Holmes-Cerfon

We perform molecular dynamic simulations of liquid nanoparticles deposited on a disordered substrate. The motion of the nanoparticle is characterised by a 'stick and roll' diffusive process. Long simulation times ($\simeq \mu s$), analysis…

材料科学 · 物理学 2009-11-10 F. Celestini

The maximum spreading of an impacting liquid drop is a key metric for characterizing the fundamental fluid process of drop impact. While extensively studied for Newtonian liquids, how far a non-Newtonian drop can spread upon impacting a…

流体动力学 · 物理学 2025-04-01 Anahita Mobaseri , Satish Kumar , Xiang Cheng

A stochastic discrete drift-diffusion model is proposed to account for the effects of shot noise in weakly coupled, highly doped semiconductor superlattices. Their current-voltage characteristics consist of a number stable multistable…

介观与纳米尺度物理 · 物理学 2009-11-07 L. L. Bonilla , O. Sanchez , J. Soler

The spreading of large viscous drops of density-matched suspensions of non-Brownian spheres on a smooth solid surface is experimentally investigated at the global drop scale. The focus is on dense suspensions with a solid volume fraction…

软凝聚态物质 · 物理学 2024-11-20 Alice Pelosse , Élisabeth Guazzelli , Matthieu Roché

There has been a paradigm shift from the well-known laws of thermal radiation derived over a century ago, valid only when the length scales involved are much larger than the thermal wavelength (around 10 $\mu$m at room temperature), to a…

应用物理 · 物理学 2024-02-20 Pierre-Olivier Chapuis , Bong Jae Lee , Alejandro Rodriguez

We study the Brownian motion of a classical particle in one-dimensional inhomogeneous environments where the transition probabilities follow quasiperiodic or aperiodic distributions. Exploiting an exact correspondence with the…

统计力学 · 物理学 2009-10-31 F. Igloi , L. Turban , H. Rieger

The magnetic dissipative droplet is a strongly nonlinear wave structure that can be stabilized in a thin film ferromagnet exhibiting perpendicular magnetic anisotropy by use of spin transfer torque. These structures have been observed…

介观与纳米尺度物理 · 物理学 2016-04-12 P. Wills , E. Iacocca , M. A. Hoefer

We present a comprehensive experimental and theoretical study of phonon scattering by nanoprecipitates in potassium-doped PbTe, PbSe and PbS. We highlight the role of the precipitate size distribution measured by microscopy, whose tuning…

We study numerically the kinetic roughening properties of the precursor fronts of nonvolatile liquid droplets spreading on solid substrates, for the case of circular droplets, more frequently addressed in experiments. To this end, we…

统计力学 · 物理学 2025-04-24 J. M. Marcos , J. J. Melendez , R. Cuerno , J. J. Ruiz-Lorenzo

This paper presents a simple model for such processes as chaos spreading or turbulence spillover into stable regions. In this simple model the essential transport occurs via inelastic resonant interactions of waves on a lattice. The process…

混沌动力学 · 物理学 2025-05-28 Alexander V. Milovanov , Alexander Iomin , Jens Juul Rasmussen

In nature, high-speed rain drops often impact and spread on curved surfaces e.g. tree leaves. Although a drop impact on a surface is a traditional topic for industrial applications, drop-impact dynamics on curved surfaces in natural…

流体动力学 · 物理学 2022-11-09 Ming Long , Jalil Hasanyan , Sunghwan Jung

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…

软凝聚态物质 · 物理学 2015-06-11 Joel Koplik , Rui Zhang