Publications associées à Hydroptère

Vortex shedding from a composite hydrofoil: Experimental evidence of a novel "partial lock-in"

Mohamed Farhat, Thomas Antoine Nicolas Berger, Qin Wu, Yunqing Liu

Lock-in is of great importance in many engineering applications due to its practical implications for structural safety. The influence of composite bend-twist coupling on the wake dynamics and vortex-induced vibration around a carbon fiber composite hydrof ...

Melville2023

Performance potential of gas foil thrust bearings enhanced with spiral grooves

Jürg Alexander Schiffmann, Eliott Philippe Guenat

The upscaling of turbomachinery using gas foil thrust bearings is limited because of their limited load capacity and the thermal issues linked with very thin film thickness. The improvement potential of spiral grooves manufactured on the top-foil of such b ...

2019

Effects of chordwise flexibility on 2D flapping foils used as an energy extraction device

Guillaume Jeanmonod

The effects of chordwise pressure- and inertia-driven deformations on the power extraction potential of a kinematically constrained oscillating thin plate that undergoes a heaving and pitching motion are investigated. 2D fully coupled fluid-structure inter ...

Academic Press Ltd- Elsevier Science Ltd2017

Numerical and experimental study of a nearby solid boundary and partial submergence effects on hydrofoil added mass

Mohamed Farhat, Eduard Egusquiza

The influence of the boundary conditions on the added mass of a NACA0009 cantilever hydrofoil has been numerically and experimentally investigated. The study has been focused on the effects of a lateral solid wall close to the hydrofoil tip side and of a p ...

Pergamon-Elsevier Science Ltd2014

Effect of trailing edge shape on hydrodynamic damping for a hydrofoil

Mohamed Farhat, Matthieu Dreyer, Zhifeng Yao

Flow induced vibration on a hydrofoil may be significantly reduced with a slight modification of the trailing edge without alteration of the hydrodynamic performance. Particularly, the so called Donaldson trailing edge shape gave remarkable results and is ...

Elsevier2014

How oblique trailing edge of a hydrofoil reduces the vortex-induced vibration

François Avellan, Mohamed Farhat, Philippe Ausoni, Amirreza Zobeiri

The effect of hydrofoil trailing edge shape on the wake dynamic and flow induced vibration is investigated at high Reynolds number, Re = 0.5 x 10(6)-2.9 x 10(6). Two NACA 0009 hydrofoils with blunt and oblique trailing edges are tested. The velocity field ...

Elsevier2012

The Effects of a Tripped Turbulent Boundary Layer on Vortex Shedding from a Blunt Trailing Edge Hydrofoil

François Avellan, Mohamed Farhat, Philippe Ausoni, Amirreza Zobeiri

Experiments on vortex shedding from a blunt trailing edge symmetric hydrofoil operating at zero angle of attack in a uniform high speed flow, Re-h = 16.1 . 10(3) - 96.6 . 10(3), where the reference length h is the trailing edge thickness, are reported. The ...

2012

Laser-induced cavitation bubble collapsing in the vicinity of the leading edge of a hydrofoil

Mohamed Farhat, Marc Tinguely

In the present study, a high energy pulsed laser is used to generate a millimetric cavitation bubble within a water flow over a symmetric hydrofoil. The bubble is initiated at different locations in the vicinity of the hydrofoil leading edge. A high-speed ...

EPFL Doctoral Conference in Mechanics - EDCM20102010

Reversed processing of dry photoresist: application to the encapsulation of chemical sensors

Nico de Rooij, Danick Briand, Jérôme Courbat

A generic method for the reverse processing of dry photoresist is proposed. The technique is based on the lamination of pre-patterned polymeric structures on the pre-existing devices. The concept is illustrated with the encapsulation at the foil level of g ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2010

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Hydroptère

Vortex shedding from a composite hydrofoil: Experimental evidence of a novel "partial lock-in"

Performance potential of gas foil thrust bearings enhanced with spiral grooves

Effects of chordwise flexibility on 2D flapping foils used as an energy extraction device

Numerical and experimental study of a nearby solid boundary and partial submergence effects on hydrofoil added mass

Effect of trailing edge shape on hydrodynamic damping for a hydrofoil

How oblique trailing edge of a hydrofoil reduces the vortex-induced vibration

Effect of Hydrofoil Trailing Edge Geometry on the Wake Dynamics

The Effects of a Tripped Turbulent Boundary Layer on Vortex Shedding from a Blunt Trailing Edge Hydrofoil

Laser-induced cavitation bubble collapsing in the vicinity of the leading edge of a hydrofoil

Reversed processing of dry photoresist: application to the encapsulation of chemical sensors

Graph Chatbot

Chattez avec Graph Search

Performance potential of gas foil thrust bearings enhanced with spiral grooves

Effects of chordwise flexibility on 2D flapping foils used as an energy extraction device

Vortex shedding from a composite hydrofoil: Experimental evidence of a novel "partial lock-in"

How oblique trailing edge of a hydrofoil reduces the vortex-induced vibration

Laser-induced cavitation bubble collapsing in the vicinity of the leading edge of a hydrofoil

Effect of trailing edge shape on hydrodynamic damping for a hydrofoil

Numerical and experimental study of a nearby solid boundary and partial submergence effects on hydrofoil added mass

Effect of Hydrofoil Trailing Edge Geometry on the Wake Dynamics

The Effects of a Tripped Turbulent Boundary Layer on Vortex Shedding from a Blunt Trailing Edge Hydrofoil

Reversed processing of dry photoresist: application to the encapsulation of chemical sensors