69 citations · 346 across the 21 of their papers we have counts for
7 papers · 1 filter
Rising and Sinking in Resonance: Probing the critical role of rotational dynamics for buoyancy driven spheres
Jelle Will, Dominik Krug
We present experimental results for spherical particles rising and settling in a still fluid. Imposing a well-controlled center of mass offset enables us to vary the rotational dyn…
Fabrication of free-standing Pt nanowires for use as thermal anemometry probes in turbulence measurements
Hai Le-The, Christian Küchler, Albert van den Berg +3
We report a robust fabrication method for patterning free-standing Pt nanowires for the use as thermal anemometry probes for small-scale turbulence measurements. Using e-beam litho…
The large-scale footprint in small-scale Rayleigh-Bénard turbulence
Pieter Berghout, Woutijn Johannes Baars, Dominik Krug
Turbulent convection systems are known to give rise to prominent large scale circulation. At the same time, the `background' (or `small-scale') turbulence is also highly relevant a…
Kinematics and dynamics of freely rising spheroids at high Reynolds numbers
J. B. Will, V. Mathai, S. G. Huisman +3
We experimentally investigate the effect of geometrical anisotropy for buoyant ellipsoidal particles rising in a still fluid. All other parameters, such as the Galileo number $Ga \…
Flow organization in laterally unconfined Rayleigh-Bénard turbulence
Alexander Blass, Roberto Verzicco, Detlef Lohse +2
We investigate the large-scale circulation (LSC) of turbulent Rayleigh-Bénard convection in a large box of aspect ratio for Rayleigh numbers up to and at a fixed P…
Electrochemically Induced pH Change: Time-Resolved Confocal Fluorescence Microscopy Measurements and Comparison with Numerical Model
Nakul Pande, Shri K. Chandrasekar, Detlef Lohse +4
Confocal fluorescence microscopy is a proven technique, which can image near-electrode pH changes. For a complete understanding of electrode processes, time-resolved measurements a…
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…