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Showing 2013 · physics.flu-dynShow all

11 papers · 2 filters

physics.flu-dyn2013

Marangoni spreading due to a localized alcohol supply on a thin water film

José Federico Hernández-Sánchez, Antonin Eddi, J. H. Snoeijer

Bringing the interfaces of two miscible fluids into contact naturally generates strong gradients in surface tension. Here we investigate such a Marangoni-driven flow by continuousl…

physics.flu-dyn2013★ 5 cited

Geometrical statistics of the vorticity vector and the strain rate tensor in rotating turbulence

Lorenzo Del Castello, Herman J. H. Clercx

We report results on the geometrical statistics of the vorticity vector obtained from experiments in electromagnetically forced rotating turbulence. A range of rotation rates i…

physics.flu-dyn2013★ 110 cited

Drops on soft solids: Free energy and double transition of contact angles

Luuk A. Lubbers, Joost H. Weijs, Lorenzo Botto +3

The equilibrium shape of liquid drops on elastic substrates is determined by minimising elastic and capillary free energies, focusing on thick incompressible substrates. The proble…

physics.flu-dyn2013★ 36 cited

Heat flux scaling in turbulent Rayleigh-Bénard convection with an imposed longitudinal wind

Andrea Scagliarini, Armann Gylfason, Federico Toschi

We present a numerical study of Rayleigh-Bénard convection disturbed by a longitudinal wind. Our results show that under the action of the wind, the vertical heat flux through the…

physics.flu-dyn2013★ 23 cited

Lagrangian acceleration of passive tracers in statistically-steady rotating turbulence

Lorenzo Del Castello, Herman J. H. Clercx

The statistical properties of the Lagrangian acceleration vector of passive tracers in statistically-steady rotating turbulence is studied by Particle Tracking Velocimetry. Direct…

physics.flu-dyn2013★ 16 cited

Lagrangian velocity auto-correlations in statistically-steady rotating turbulence

Lorenzo Del Castello, Herman J. H. Clercx

Lagrangian statistics of passive tracers in rotating turbulence is investigated by Particle Tracking Velocimetry. A confined and steadily-forced turbulent flow is subjected to five…

physics.flu-dyn2013★ 133 cited

Stability of viscous long liquid filaments

Theo Driessen, Roger Jeurissen, Herman Wijshoff +2

We study the collapse of an axisymmetric liquid filament both analytically and by means of a numerical model. The liquid filament, also known as ligament, may either collapse stabl…

physics.flu-dyn2013★ 70 cited

Spinodal decomposition in homogeneous and isotropic turbulence

Prasad Perlekar, Roberto Benzi, Herman J. H. Clercx +2

We study the competition between domain coarsening in a symmetric binary mixtures below the critical temperature and turbulent fluctuations. We find that the coarsening process is…

physics.flu-dyn2013★ 4 cited

Lattice Boltzmann method to study the contraction of a viscous ligament

Sudhir Srivastava, Theo Driessen, Roger Jeurissen +2

We employ a recently formulated axisymmetric version of the multiphase Shan-Chen (SC) lattice Boltzmann method (LBM) [Srivastava et al, in preparation (2013)] to simulate the contr…

physics.flu-dyn2013★ 44 cited

Hydrodynamics of air entrainment by moving contact lines

T. S. Chan, S. Srivastava, A. Marchand +4

We study the dynamics of the interface between two immiscible fluids in contact with a chemically homogeneous moving solid plate. We consider the generic case of two fluids with an…

physics.flu-dyn2013★ 36 cited

From creeping to inertial flow in porous media: a lattice Boltzmann - Finite Element study

Ariel Narváez, Kazem Yazdchi, Stefan Luding +1

The lattice Boltzmann method has been successfully applied for the simulation of flow through porous media in the creeping regime. Its technical properties, namely discretization,…