4.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- ETH ZurichCH14 papers
- Swiss Federal Institute of Aquatic Science and TechnologyCH8 papers
- University of GeorgiaUS7 papers
- Institute of Environmental EngineeringPL6 papers
- Imperial College LondonGB3 papers
- Oak Ridge National LaboratoryUS3 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- CSCS - Swiss National Supercomputing Centre2 papers
- Goddard Space Flight CenterUS2 papers
- Institute for Biomedical EngineeringCH2 papers
- Institute of Mechanical SystemsCH2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2 papers
10 papers · 1 filter
Drag reduction utilizing a wall-attached ferrofluid film in turbulent channel flow
Marius M. Neamtu-Halic, Markus Holzner, Laura M. Stancanelli
This study explores the application of a wall-attached ferrofluid film to decrease skin friction drag in turbulent channel flow. We conduct experiments using water as a working flu…
Universal alignment in turbulent pair dispersion
Ron Shnapp, Stefano Brizzolara, Marius M. Neamtu-Halic +2
Countless processes in nature and industry, from rain droplet nucleation to plankton interaction in the ocean, are intimately related to turbulent fluctuations of local concentrati…
Splitting of localized disturbances in viscoelastic channel flow
Ron Shnapp, Victor Steinberg
We examine the response of an inertia-less viscoelastic channel flow to localized perturbations. A simplified model shows that the non-linear interaction between the velocity and e…
Transition from shear-dominated to Rayleigh-Taylor turbulence
Stefano Brizzolara, Jean-Paul Mollicone, Maarten van Reeuwijk +2
Turbulent mixing layers in nature are often characterized by the presence of a mean shear and an unstable buoyancy gradient between two streams of different velocity. Depending on…
Fiber Tracking Velocimetry for two-point statistics of turbulence
Stefano Brizzolara, Marco Edoardo Rosti, Stefano Olivieri +3
We propose and validate a novel experimental technique to measure two-point statistics of turbulent flows. It consists in spreading rigid fibers in the flow and tracking their posi…
Role of vortical structures for enstrophy and scalar transport in flows with and without stable stratification
M. M. Neamtu-Halic, J. -P. Mollicone, M. van Reeuwijk +1
In this paper, we investigate the enstrophy dynamics in relation to objective Eulerian coherent structures (OECSs) and their impact on the enstrophy and scalar transport near the t…
Efficient mate finding in planktonic copepods swimming in turbulence
François-Gaël Michalec, Itzhak Fouxon, Sami Souissi +1
Zooplankton live in dynamic environments where turbulence may challenge their limited swimming abilities. How this interferes with fundamental behavioral processes remains elusive.…
Objective barriers to the transport of dynamically active vector fields
George Haller, Stergios Katsanoulis, Markus Holzner +2
We derive a theory for material surfaces that maximally inhibit the diffusive transport of a dynamically active vector field, such as the linear momentum, the angular momentum or t…
Connecting the time evolution of the turbulence interface to coherent structures
M. M. Neamtu-Halic, D. Krug, J. P. Mollicone +3
The surface area of turbulent/non-turbulent interfaces (TNTIs) is continuously produced and destroyed via stretching and curvature/propagation effects. Here, the mechanisms respons…
Bulldozing of granular material
A. Sauret, N. J. Balmforth, C. P. Caulfield +1
We investigate the bulldozing motion of a granular sandpile driven forwards by a vertical plate. The problem is set up in the laboratory by emplacing the pile on a table rotating u…