Laboratoire de Mécanique des Fluides et d'Acoustique - UMR 5509

LMFA - UMR 5509
Laboratoire de Mécanique des Fluides et d’Acoustique
Lyon
France


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Accueil > Équipes > Turbulence & Instabilités > Publications T&I > Publications T&I 2014

Publications T&I 2014

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Global stability analysis of flow through a fusiform aneurysm : steady flows

Article dans J. Fluid Mech. (2014)

Global stability analysis of flow through a fusiform aneurysm : steady flows

Shyam Sunder Gopalakrishnan, Benoît Pier & Arie Biesheuvel

The global linear stability of steady axisymmetric flow through a model fusiform aneurysm is studied numerically. The aneurysm is modelled as a Gaussian-shaped inflation on a vessel of circular (...)

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Strain and Stratification Effects on the Rapid Acceleration of a Turbulent Mixing Zone

Article dans J. Fluids Eng. (2014)

Strain and Stratification Effects on the Rapid Acceleration of a Turbulent Mixing Zone

Benoît-Joseph Gréa, Jérôme Griffond & Fabien Godeferd

We consider the problem of a turbulent mixing zone (TMZ), initially submitted to coupled effects of axisymmetric strain and stratification, then subsequently accelerated. The TMZ grows in the (...)

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Chaotic mixing in effective compressible flows

Article dans Phys. Rev. E (2014)

Chaotic mixing in effective compressible flows

R. Volk, C. MaugerM. Bourgoin, C. Cottin-Bizonne, C. Ybert & F. Raynal

We study numerically joint mixing of salt and colloids by chaotic advection and how salt inhomogeneities accelerate or delay colloid mixing by inducing a velocity drift V$_\rm dp$ between (...)

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The effect of toroidicity on reversed field pinch dynamics

Article dans Plasma Phys. Control. Fusion (2014)

The effect of toroidicity on reversed field pinch dynamics

Jorge A. Morales, Wouter J. T. Bos, Kai Schneider & David C. Montgomery

The influence of the curvature of the imposed magnetic field on reversed field pinch dynamics is investigated by comparing the flow of a magnetofluid in a torus with aspect ratio 1.83, with the (...)

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Bifurcation analysis of steady natural convection in a tilted cubical cavity with adiabatic sidewalls

Article dans J. Fluid Mech. (2014)

Bifurcation analysis of steady natural convection in a tilted cubical cavity with adiabatic sidewalls

J. F. Torres, D. Henry, A. Komiya & S. Maruyama

Natural convection in an inclined cubical cavity heated from two opposite walls maintained at different temperatures and with adiabatic sidewalls is investigated numerically. The cavity is (...)

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Scaling and dimensional analysis of acoustic streaming jets

Article dans Phys. Fluids (2014)

Scaling and dimensional analysis of acoustic streaming jets

B. Moudjed, V. Botton, D. Henry, H. Ben Hadid & J.-P. Garandet

This paper focuses on acoustic streaming free jets. This is to say that progressive acoustic waves are used to generate a steady flow far from any wall. The derivation of the governing equations (...)

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Comparison of Ellison and Thorpe scales from Eulerian ocean temperature observations

Article dans J. Geophys. Res. C (2014)

Comparison of Ellison and Thorpe scales from Eulerian ocean temperature observations

Andrea A. Cimatoribus, Hans van Haren & Louis Gostiaux

Ocean turbulence dissipation rate is estimated either by means of microstructure shear measurements, or by adiabatically reordering vertical profiles of density. The latter technique leads to the (...)

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Recent understanding on the subgrid-scale modeling of large-eddy simulation in physical space

Article dans Sci. China, Phys. Mech. Astron. (2014)

Recent understanding on the subgrid-scale modeling of large-eddy simulation in physical space

Le Fang, Liang Shao & Jean-Pierre Bertoglio

In the last 50 years, the methodology of large-eddy simulation (LES) has been greatly developed, while lots of different subgridscale (SGS) models have appeared. However, the understanding of the (...)

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Dynamics of pulsatile flow through model abdominal aortic aneurysms

Article dans J. Fluid Mech. (2014)

Dynamics of pulsatile flow through model abdominal aortic aneurysms

Shyam Sunder Gopalakrishnan, Benoît Pier & Arie Biesheuvel

To contribute to the understanding of flow phenomena in abdominal aortic aneurysms, numerical computations of pulsatile flows through aneurysm models and a stability analysis of these flows were (...)

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Oscillating acoustic streaming jet

Article dans Appl. Phys. Lett. (2014)

Oscillating acoustic streaming jet

Brahim Moudjed, Valéry Botton, Daniel Henry, Séverine Millet, Jean-Paul Garandet & Hamda Ben-Hadid

The present paper provides the first experimental investigation of an oscillating acoustic streaming jet. The observations are performed in the far field of a 2 MHz circular plane ultrasound (...)

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