329 citations · 940 across the 15 of their papers we have counts for
15 papers
Alignment and scattering of colliding active droplets
Kevin Lippera, Michael Benzaquen, Sebastien Michelin
Active droplets emit a chemical solute at their surface that modifies their local interfacial tension. They exploit the nonlinear coupling of the convective transport of solute to…
Bouncing, chasing or pausing: asymmetric collisions of active droplets
Kevin Lippera, Michael Benzaquen, Sebastien Michelin
Chemically-active droplets exhibit complex avoiding trajectories. While heterogeneity is inevitable in active matter experiments, it is mostly overlooked in their modelling. Exploi…
The flow field around a confined active droplet
Charlotte de Blois, Mathilde Reyssat, Sebastien Michelin +1
We present here first-of-a-kind experimental measurements of the flow field around a swimming water droplet, using confocal PIV in three dimensions. The droplet is denser than the…
Electro-hydrodynamic synchronization of piezoelectric flags
Yifan Xia, Olivier Doare, Sebastien Michelin
Hydrodynamic coupling of flexible flags in axial flows may profoundly influence their flapping dynamics, in particular driving their synchronization. This work investigates the eff…
Synchronized switch harvesting applied to piezoelectric flags
Miguel Pineirua, Sebastien Michelin, Dejan Vasic +1
In this article the energy transfer between a flow and a fluttering piezoelectric plate is investigated. In particular, the benefits of the use of a Synchronized Switch Harvesting…
Resonance-induced enhancement of the energy harvesting performance of piezoelectric flags
Yifan Xia, Sebastien Michelin, Olivier Doare
The spontaneous flapping of a flag can be used to produce electrical energy from a fluid flow when coupled to a generator. In this paper, the energy harvesting performance of a fla…
Influence and optimization of the electrodes position in a piezoelectric energy harvesting flag
Miguel Piñeirua, Olivier Doaré, Sébastien Michelin
Fluttering piezoelectric plates may harvest energy from a fluid flow by converting the plate's mechanical deformation into electric energy in an output circuit. This work focuses o…
Fluid-solid-electric lock-in of energy-harvesting piezoelectric flags
Yifan Xia, Sebastien Michelin, Olivier Doare
The spontaneous flapping of a flag in a steady flow can be used to power an output circuit using piezoelectric elements positioned at its surface. Here, we study numerically the ef…
A space-averaged model of branched structures
Diego Lopez, Emmanuel de Langre, Sébastien Michelin
Many biological systems and artificial structures are ramified, and present a high geometric complexity. In this work, we propose a space-averaged model of branched systems for con…
On the efficiency of energy harvesting using vortex-induced vibrations of cables
Clement Grouthier, Sebastien Michelin, Remi Bourguet +2
Many technologies based on fluid-structure interaction mechanisms are being developed to harvest energy from geophysical flows. The velocity of such flows is low, and so is their e…
Self-propulsion of pure water droplets by spontaneous Marangoni stress driven motion
Ziane Izri, Marjolein N. van der Linden, Sébastien Michelin +1
We report spontaneous motion in a fully bio-compatible system consisting of pure water droplets in an oil-surfactant medium of squalane and monoolein. Water from the droplet is sol…
The effect of non-uniform damping on flutter in axial flow and energy harvesting strategies
Kiran Singh, Sebastien Michelin, Emmanuel de Langre
The problem of energy harvesting from flutter instabilities in flexible slender structures in axial flows is considered. In a recent study, we used a reduced order theoretical mode…
Energy harvesting using vortex-induced vibrations of tensioned cables
Clement Grouthier, Sebastien Michelin, Emmanuel de Langre
The development of energy harvesting systems based on fluid/structure interactions is part of the global search for innovative tools to produce renewable energy. In this paper, the…
Piezoelectric coupling in energy-harvesting fluttering flexible plates : linear stability analysis and conversion efficiency
Olivier Doare, Sebastien Michelin
This paper investigates the energy harvested from the flutter of a plate in an axial flow by making use of piezoelectric materials. The equations for fully-coupled linear dynamics…
Flow-induced pruning of branched systems and brittle reconfiguration
Diego Lopez, Sebastien Michelin, Emmanuel de Langre
Whereas most plants are flexible structures that undergo large deformations under flow, another process can occur when the plant is broken by heavy fluid-loading. We investigate he…