235 citations · 427 across the 15 of their papers we have counts for
12 papers · 1 filter
Prediction of resistance induced by surface complexity in lubricating layers: Application to super-hydrophobic surfaces
Noura Bettaieb, Marco Castagana, Pierre-Yves Passaggia +2
Super Hydrophobic (SH) coatings are widely used to mitigate drag in various applications. Numerous studies have demonstrated that the beneficial wall-slip effect produced by these…
On scaling of mass entrainment in separated shear layers: the footprint of the incoming boundary layer
Francesco Stella, Nicolas Mazellier, Azeddine Kourta
We experimentally investigate the effects on scaling of separating/reattaching flows of the ratio , where is the thickness at separation of the incoming boundary layer…
An Isotropic Porous Medium Approach to Drag Mitigation Disappearance in Super-Hydrophobic Falling Spheres
Marco Castagna, Nicolas Mazellier, Pierre-Yves Passaggia +1
In this Letter, the falling of super-hydrophobic spheres is investigated experimentally at low Reynolds numbers. In particular, we show that super-hydrophobic coatings become ineff…
A mass entrainment-based model for separating/reattaching flows
Francesco Stella, Nicolas Mazellier, Pierric Joseph +1
Recent studies have shown that entrainment effectively describes the behaviour of natural and forced separating/reattaching flows developing behind bluff bodies, potentially paving…
Wake of super-hydrophobic falling spheres: influence of the air layer deformation
Marco Castagna, Nicolas Mazellier, Azeddine Kourta
We report an experimental investigation of the wake of free falling super-hydrophobic spheres. The mutual interaction between the air layer (plastron) encapsulating the super-hydro…
Closed-loop separation control over a sharp edge ramp using Genetic Programming
Antoine Debien, Kai A. A. F. von Krbek, Nicolas Mazellier +5
We experimentally perform open and closed-loop control of a separating turbulent boundary layer downstream from a sharp edge ramp. The turbulent boundary layer just above the separ…