109 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- ETH ZurichCH19 papers
- Swiss Federal Institute for Forest, Snow and Landscape ResearchCH6 papers
- Swiss Federal Institute of Aquatic Science and TechnologyCH6 papers
- Imperial College LondonGB5 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- Institute of Mechanical SystemsCH2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2 papers
- Leiden UniversityNL2 papers
- Max Planck Institute for Dynamics and Self-OrganizationDE2 papers
- Max Planck University of Twente Center for Complex Fluid DynamicsNL2 papers
- University of CambridgeGB2 papers
- University of TwenteNL2 papers
12 papers · 1 filter
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…
A single parameter can predict surfactant impairment of superhydrophobic drag reduction
Fernando Temprano-Coleto, Scott M. Smith, François J. Peaudecerf +3
Recent experimental and computational investigations have shown that trace amounts of surfactants, unavoidable in practice, can critically impair the drag reduction of superhydroph…
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.…
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…
Lagrangian coherent structures and entrainment near the turbulent/non-turbulent interface of a gravity current
M. M. Neamtu-Halic, D. Krug, G. Haller +1
In this paper, we employ Lagrangian coherent structures (LCSs) theory for the three dimensional vortex eduction and investigate the effect of large-scale vortical structures on the…
Mixing and entrainment are suppressed in inclined gravity currents
Maarten van Reeuwijk, Markus Holzner, C. P. Caulfield
We explore the dynamics of inclined temporal gravity currents using direct numerical simulation, and find that the current creates an environment in which the flux Richardson numbe…
Experimental investigation of transitional flow in a toroidal pipe
J. Kühnen, M. Holzner, B. Hof +1
The flow instability and further transition to turbulence in a toroidal pipe (torus) with curvature (tube-to-coiling diameter) 0.049 is investigated experimentally. The flow inside…
The turbulence boundary of a temporal jet
Maarten van Reeuwijk, Markus Holzner
We examine the structure of the turbulence boundary of a temporal plane jet at using statistics conditioned on the enstrophy. The data is obtained by direct numerical sim…
Viscous tilting and production of vorticity in homogeneous turbulence
M. Holzner, M. Guala, B. Lüthi +4
Viscous depletion of vorticity is an essential and well known property of turbulent flows, balancing, in the mean, the net vorticity production associated with the vortex stretchin…