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4 papers · 2 filters
Persistence Problem in Two-Dimensional Fluid Turbulence
Prasad Perlekar, Samriddhi Sankar Ray, Dhrubaditya Mitra +1
We present a natural framework for studying the persistence problem in two-dimensional fluid turbulence by using the Okubo-Weiss parameter to distinguish between vortical and e…
Direct numerical simulations of statistically steady, homogeneous, isotropic fluid turbulence with polymer additives
Prasad Perlekar, Dhrubaditya Mitra, Rahul Pandit
We carry out a direct numerical simulation (DNS) study that reveals the effects of polymers on statistically steady, forced, homogeneous, isotropic fluid turbulence. We find clear…
Simulations of slip flow on nanobubble-laden surfaces
Jari Hyväluoma, Christian Kunert, Jens Harting
On microstructured hydrophobic surfaces, geometrical patterns may lead to the appearance of a superhydrophobic state, where gas bubbles at the surface can have a strong impact on t…
Quantitative analysis of numerical estimates for the permeability of porous media from lattice-Boltzmann simulations
Ariel Narváez, Thomas Zauner, Frank Raischel +2
During the last decade, lattice-Boltzmann (LB) simulations have been improved to become an efficient tool for determining the permeability of porous media samples. However, well kn…