Showing 2015 · physics.flu-dynShow all

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physics.flu-dyn2015

DSMC-LBM mapping scheme for rarefied and non-rarefied gas flows

G. Di Staso, H. J. H Clercx, S. Succi +1

We present the formulation of a kinetic mapping scheme between the Direct Simulation Monte Carlo (DSMC) and the Lattice Boltzmann Method (LBM) which is at the basis of the hybrid m…

physics.flu-dyn2015★ 70 cited

Lubrication of soft viscoelastic solids

Anupam Pandey, Stefan Karpitschka, Kees Venner +1

Lubrication flows appear in many applications in engineering, biophysics, and in nature. Separation of surfaces and minimisation of friction and wear is achieved when the lubricati…

physics.flu-dyn2015★ 82 cited

Drop deformation by laser-pulse impact

Hanneke Gelderblom, Henri Lhuissier, Alexander L. Klein +4

A free-falling absorbing liquid drop hit by a nanosecond laser-pulse experiences a strong recoil-pressure kick. As a consequence, the drop propels forward and deforms into a thin s…

physics.flu-dyn2015★ 1 cited

Mesoscopic simulation of diffusive contaminant spreading in gas flows at low pressure

S. Schmieschek, D. K. N. Sinz, F. Keller +2

Many modern production and measurement facilities incorporate multiphase systems at low pressures. In this region of flows at small, non-zero Knudsen- and low Mach numbers the clas…

physics.flu-dyn2015★ 38 cited

Curvature estimation from a volume of fluid indicator function for the simulation of surface tension and wetting with a free surface lattice Boltzmann method

Simon Bogner, Ulrich Rüde, Jens Harting

The free surface lattice Boltzmann method (FSLBM) is a combination of the hydrodynamic lattice Boltzmann method (LBM) with a volume of fluid (VOF) interface apturing technique for…

physics.flu-dyn2015★ 2 cited

The effect of surface wettability on inertial pouring flows

Wilco Bouwhuis, Jacco H. Snoeijer

A liquid poured from a curved solid surface can separate as a steady jet or sheet, or trickle down along the solid surface. It was shown by Duez et al. [Phys. Rev. Lett. 104, 08450…

physics.flu-dyn2015★ 25 cited

On the Peterlin approximation for turbulent flows of polymer solutions

Dario Vincenzi, Prasad Perlekar, Luca Biferale +1

We study the impact of the Peterlin approximation on the statistics of the end-to-end separation of poly- mers in a turbulent flow. The FENE and FENE-P models are numerically integ…

physics.flu-dyn2015★ 55 cited

Turbulence on a Fractal Fourier set

Alessandra Sabina Lanotte, Roberto Benzi, Shiva Kumar Malapaka +2

A novel investigation of the nature of intermittency in incompressible, homogeneous and isotropic turbulence is performed by a numerical study of the Navier-Stokes equations constr…

physics.flu-dyn2015★ 34 cited

Law of the wall in an unstably stratified turbulent channel flow

Andrea Scagliarini, Halldór Einarsson, Ármann Gylfason +1

We perform direct numerical simulations of an unstably stratified turbulent channel flow to address the effects of buoyancy on the boundary layer dynamics and mean field quantities…

physics.flu-dyn2015★ 13 cited

Inertial particle acceleration in strained turbulence

Chung-min Lee, Ármann Gylfason, Prasad Perlekar +1

The dynamics of inertial particles in turbulence is modelled and investigated by means of direct numerical simulation of an axisymmetrically expanding homogeneous turbulent straine…

physics.flu-dyn2015★ 74 cited

Universal mechanism for air entrainment during liquid impact

Maurice H. W. Hendrix, Wilco Bouwhuis, Devaraj van der Meer +2

When a mm-sized liquid drop approaches a deep liquid pool, both the interface of the drop and the pool deform before the drop touches the pool. The build up of air pressure prior t…

physics.flu-dyn2015★ 97 cited

Drop Shaping by Laser-Pulse Impact

Alexander L. Klein, Wilco Bouwhuis, Claas Willem Visser +6

We show how the deposition of laser energy induces propulsion and strong deformation of an absorbing liquid body. Combining high speed with stroboscopic imaging, we observe that a…