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- Sylvain Courrech du Pont, Philippe Gondret, Bernard Perrin, Marc Rabaud
- Physical review letters
- 2003

Three regimes of granular avalanches in fluids are put in light depending on the Stokes number St which prescribes the relative importance of grain inertia and fluid viscous effects and on the… (More)

- By F. MOISY, Olivier Doaré, T. PASUTTO, O. DAUBE, Marc Rabaud
- 2004

The shear layer instability in the flow between two counter-rotating disks enclosed by a cylinder is investigated experimentally and numerically, for radius-to-height ratio Γ = R/h between 2 and 21.… (More)

- Patrick Bot, Marc Rabaud, Goulven Thomas, Alessandro Lombardi, Charles Lebret
- Physical review letters
- 2016

Bluff bodies moving in a fluid experience a drag force which usually increases with velocity. However in a particular velocity range a drag crisis is observed, i.e., a sharp and strong decrease of… (More)

- Marc Rabaud, Frédéric Moisy
- Physical review letters
- 2013

From the analysis of a set of airborne images of ship wakes, we show that the wake angles decrease as U(-1) at large velocities, in a way similar to the Mach cone for supersonic airplanes. This… (More)

The angle formed by ship wakes is usually found close to the value predicted by Kelvin, α1⁄4 19:471. However we recently showed that the angle of maximumwave amplitude can be significantly smaller at… (More)

- Raphaël Fischer, Philippe Gondret, Marc Rabaud
- Physical review letters
- 2009

We investigate, in the rotating drum configuration, the transition from the regime of discontinuous avalanches observed at low angular velocity to the regime of continuous flow observed at higher… (More)

- Sylvain Courrech du Pont, Raphaël Fischer, Philippe Gondret, Bernard Perrin, Marc Rabaud
- Physical review letters
- 2005

We perform experimental measurements of the instantaneous velocity profile of the flowing layer during granular avalanches. In the pile depth, the velocity profile follows a pure exponential decrease… (More)

- Frédéric Moisy, Marc Rabaud
- Physical review. E, Statistical, nonlinear, and…
- 2014

It has been recently emphasized that the angle of maximum wave amplitude α in the wake of a disturbance of finite size can be significantly narrower than the maximum value… (More)

We investigate experimentally the early stage of the generation of waves by a turbulent wind at the surface of a viscous liquid. The spatio-temporal structure of the surface deformation is analyzed… (More)

- Raphaël Fischer, Philippe Gondret, Bernard Perrin, Marc Rabaud
- Physical review. E, Statistical, nonlinear, and…
- 2008

A fine analysis of the statistics of dry granular avalanches in a rotating drum setup reveals that, beyond the fluctuations, the angle at which an avalanche ends is correlated experimentally to the… (More)