Publications related to Shock wave

Experimental Investigation Of The Vortex Shedding In The Wake Of Oblique And Blunt Trailing Edge Hydrofoils Using Piv-Pod

François Avellan, Mohamed Farhat, Philippe Ausoni, Amirreza Zobeiri

This paper presents an experimental investigation of the vortex shedding in the wake of blunt and oblique trailing edge hydrofoils at high Reynolds number, Re=5 10(5) - 2.9 10(6). The velocity field in the wake is surveyed with the help of Particle-Image-V ...

American Soc Mechanical Engineers, Three Park Avenue, New York, Ny 10016-5990 Usa2010

Experimental investigation of the vortex shedding dynamic in the wake of oblique and blunt trailing edge hydrofoils using PIV-POD method

François Avellan, Mohamed Farhat, Philippe Ausoni, Amirreza Zobeiri

This paper presents an experimental investigation of the vortex shedding in the wake of blunt and oblique trailing edge hydrofoils at high Reynolds number, Re=5 10 5 - 2.9 10 6. The velocity field in the wake is surveyed with the help of Particle-Image-Vel ...

American Soc Mechanical Engineers2010

Hydroacoustic Simulation of Rotor-Stator Interaction in Resonance Conditions in Francis Pump-Turbine

François Avellan, Christophe Nicolet, Sébastien Alligné, Nicolas Ruchonnet

Combined effect of rotating pressure field related to runner blade and wakes of wicket gates leads to rotor stator interactions, RSI, in Francis pump-turbines. These interactions induce pressures waves propagating in the entire hydraulic machine. Superposi ...

International Association For Hydraulic Research2010

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

Jonathan Graves, Wilfred Anthony Cooper, Lucie Brocher

Ideal MHD yields at best inconclusive predictions about the stability of the LHD heliotron for

\langle \beta \rangle \geq 3\%

. We investigate the impact of the drift stabilization of ballooning modes for the inward shifted LHD configuration (vacuum magne ...

2010

Time-resolved x-ray diffraction study of laser-induced shock and acoustic waves in single crystalline silicon

A rod of single crystalline silicon has been subjected to high-power nanosecond laser pulses inducing ultrasonic and shock waves traveling into the bulk of the material. Stroboscopic time-resolved high-energy x-ray diffraction measurements were carried out ...

2009

Caractérisation de la génération et la propagation d'ondes de pressions dans des tissus biologiques pour la conception d'appareils médicaux

Mathieu Benoit

Therapies using so called extracorporeal shock waves (Extracorporeal Shock Wave Therapy ESWT) have become current medical practice in orthopedy and traumatology. In order to understand and to optimize the effect of shock waves in clinical applications, med ...

EPFL2009

On local nonreflecting boundary conditions for time dependent wave propagation

Imbo Sim

The simulation of wave phenomena in unbounded domains generally requires an artificial boundary to truncate the unbounded exterior and limit the computation to a finite region. At the artificial boundary a boundary condition is then needed, which allows th ...

2009

Nonmonotonic pseudogap in high-T-c cuprates

Helmuth Berger

The mechanism of high-temperature superconductivity has not been resolved for so long because the normal state of cuprates, which exhibits enigmatic pseudogap phenomena, is not yet understood. We performed careful temperature- and momentum-resolved photoem ...

2009

Characterization of pressure wave propagation in biological tissues

Kossi Agbeviade, Jacques Giovanola, Alain Curnier, Mathieu Benoit, Marcel Donnet

A measurement technique using flexible PVDF gages for characterizing the propagation of pressure waves in biological tissues is developed. We demonstrated that experimental measurements, coupled with numerical simulations, represent a promising method to o ...

E D P Sciences, 17 Ave Du Hoggar Parc D Activites Countboeuf Bp 112, F-91944 Cedex A, France2009

Interaction between a surface dielectric barrier discharge and transonic airflows

Samantha Pavon

The use of plasmas in aerodynamics has become a recent topic of interest. The potentialities of different types of plasmas are being investigated for low velocity and high velocity flow control, as well as for plasma-assisted combustion. Dielectric barrier ...

EPFL2008

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Experimental Investigation Of The Vortex Shedding In The Wake Of Oblique And Blunt Trailing Edge Hydrofoils Using Piv-Pod

Experimental investigation of the vortex shedding dynamic in the wake of oblique and blunt trailing edge hydrofoils using PIV-POD method

Hydroacoustic Simulation of Rotor-Stator Interaction in Resonance Conditions in Francis Pump-Turbine

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

Time-resolved x-ray diffraction study of laser-induced shock and acoustic waves in single crystalline silicon

Caractérisation de la génération et la propagation d'ondes de pressions dans des tissus biologiques pour la conception d'appareils médicaux

On local nonreflecting boundary conditions for time dependent wave propagation

Nonmonotonic pseudogap in high-T-c cuprates

Characterization of pressure wave propagation in biological tissues

Interaction between a surface dielectric barrier discharge and transonic airflows

Caractérisation de la génération et la propagation d'ondes de pressions dans des tissus biologiques pour la conception d'appareils médicaux

Time-resolved x-ray diffraction study of laser-induced shock and acoustic waves in single crystalline silicon

Interaction between a surface dielectric barrier discharge and transonic airflows

Experimental investigation of the vortex shedding dynamic in the wake of oblique and blunt trailing edge hydrofoils using PIV-POD method

Experimental Investigation Of The Vortex Shedding In The Wake Of Oblique And Blunt Trailing Edge Hydrofoils Using Piv-Pod

Hydroacoustic Simulation of Rotor-Stator Interaction in Resonance Conditions in Francis Pump-Turbine

On local nonreflecting boundary conditions for time dependent wave propagation

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

Characterization of pressure wave propagation in biological tissues

Nonmonotonic pseudogap in high-T-c cuprates