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Showing 2019 · physics.flu-dynShow all

13 papers · 2 filters

physics.flu-dyn2019★ 37 cited

Self-Similar Liquid Lens Coalescence

Michiel A. Hack, Walter Tewes, Qingguang Xie +4

A basic feature of liquid drops is that they can merge upon contact to form a larger drop. In spite of its importance to various applications, drop coalescence on pre-wetted substr…

physics.flu-dyn2019★ 28 cited

Deep learning velocity signals allows to quantify turbulence intensity

Alessandro Corbetta, Vlado Menkovski, Roberto Benzi +1

Turbulence, the ubiquitous and chaotic state of fluid motions, is characterized by strong and statistically non-trivial fluctuations of the velocity field, over a wide range of len…

physics.flu-dyn2019★ 55 cited

Turbulent rotating convection confined in a slender cylinder: the sidewall circulation

Xander M. de Wit, Andrés J. Aguirre Guzmán, Matteo Madonia +3

Recent studies of rotating Rayleigh-Bénard convection at high rotation rates and strong thermal forcing have shown a significant discrepancy in total heat transport between experim…

physics.flu-dyn2019★ 43 cited

Laboratory Exploration of Heat Transfer Regimes in Rapidly Rotating Turbulent Convection

Jonathan S. Cheng, Matteo Madonia, Andrés J. Aguirre Guzmán +1

We report heat transfer and temperature profile measurements in laboratory experiments of rapidly rotating convection in water under intense thermal forcing (Rayleigh number a…

physics.flu-dyn2019★ 57 cited

Drop fragmentation by laser-pulse impact

Alexander L. Klein, Dmitry Kurilovich, Henri Lhuissier +4

We study the fragmentation of a liquid drop that is hit by a laser pulse. The drop expands into a thin sheet that breaks by the radial expulsion of ligaments from its rim and the n…

physics.flu-dyn2019★ 7 cited

Lattice Boltzmann simulations of droplet breakup in confined and time-dependent flows

Felix Milan, Luca Biferale, Mauro Sbragaglia +1

We study droplet dynamics and breakup in generic time-dependent flows via a multicomponent Lattice Boltzmann algorithm, with emphasis on flow start up conditions. We first study dr…

physics.flu-dyn2019★ 10 cited

Sharp transitions in rotating turbulent convection: Lagrangian acceleration statistics reveal a second critical Rossby number

Kim M. J. Alards, Rudie P. J. Kunnen, Richard J. A. M. Stevens +3

In RB convection for fluids with Prandtl number , rotation beyond a critical (small) rotation rate is known to cause a sudden enhancement of heat transfer which can be…

physics.flu-dyn2019★ 10 cited

The statistical properties of turbulence in the presence of a smart small-scale control

Michele Buzzicotti, Luca Biferale, Federico Toschi

By means of high-resolution numerical simulations, we compare the statistical properties of homogeneous and isotropic turbulence to those of the Navier-Stokes equation where small-…

physics.flu-dyn2019★ 1 cited

Lagrangian transport and chaotic advection in three-dimensional laminar flows

Michel Speetjens, Guy Metcalfe, Murray Rudman

Transport and mixing of scalar quantities in fluid flows is ubiquitous in industry and Nature. Turbulent flows promote efficient transport and mixing by their inherent randomness.…

physics.flu-dyn2019★ 76 cited

Solidification of liquid metal drops during impact

Marise V. Gielen, Riëlle de Ruiter, Robin B. J. Koldeweij +3

Hot liquid metal drops impacting onto a cold substrate solidify during their subsequent spreading. Here we experimentally study the influence of solidification on the outcome of an…

physics.flu-dyn2019★ 31 cited

Lagrangian network analysis of turbulent mixing

Giovanni Iacobello, Stefania Scarsoglio, J. G. M. Kuerten +1

A temporal complex network-based approach is proposed as a novel formulation to investigate turbulent mixing from a Lagrangian viewpoint. By exploiting a spatial proximity criterio…

physics.flu-dyn2019★ 116 cited

Gravitational effect in evaporating binary microdroplets

Yaxing Li, Christian Diddens, Pengyu Lv +3

The flow in an evaporating glycerol-water binary sub-millimeter droplet with Bond number Bo 1 is studied both experimentally and numerically. First, we measure the flow field…

physics.flu-dyn2019★ 80 cited

Self-propulsion of inverse Leidenfrost drops on a cryogenic bath

Gauthier Anaïs, Diddens Christian, Proville Rémi +2

When deposited on a hot bath, volatile drops are observed to stay in levitation: the so-called Leidenfrost effect. Here, we discuss drop dynamics in an inverse Leidenfrost situatio…