Fluid Mechanics and Acoustics Laboratory - UMR 5509

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


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Home > Teams > Turbulence & Instabilities > Publications T&I > Publications T&I 2015

Publications T&I 2015

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Magnetohydrodynamically generated velocities in confined plasma

Article in Phys. Plasmas (2015)

Magnetohydrodynamically generated velocities in confined plasma

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

We investigate by numerical simulation the rotational flows in a toroid confining a conducting magnetofluid in which a current is driven by the application of externally supported electric and (...)

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Dependence of turbulent advection on the Lagrangian correlation time

Article in Phys. Rev. E (2015)

Dependence of turbulent advection on the Lagrangian correlation time

Wouter J. T. Bos & Le Fang

In turbulent scalar mixing, starting from random initial conditions, the root-mean-square advection term rapidly drops as the flow and the scalar field organize. We show first analytically, for (...)

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Dynamic equilibria and magnetohydrodynamic instabilities in toroidal plasmas with non-uniform transport coefficients

Article in Phys. Plasmas (2015)

Dynamic equilibria and magnetohydrodynamic instabilities in toroidal plasmas with non-uniform transport coefficients

Shimpei Futatani, Jorge A. Morales & Wouter J. T. Bos

It can be shown that in the presence of a toroidal magnetic field induced by poloidal coils, combined with the electromagnetic field induced by a central solenoid, no static equilibrium is (...)

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Angular statistics of Lagrangian trajectories in turbulence

Article in Phys. Rev. letters (2015)

Angular statistics of Lagrangian trajectories in turbulence

Wouter J. T. Bos, Benjamin Kadoch & Kai Schneider

The angle between subsequent particle displacement increments is evaluated as a function of the time lag in isotropic turbulence. It is shown that the evolution of this angle contains two (...)

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Stability of Turbine Blades, Aircraft Wings and Their Acoustic Radiation

Article in J. Therm. Eng. (2015)

Stability of Turbine Blades, Aircraft Wings and Their Acoustic Radiation

Mahmoud Hamadiche

The stability of the wing is revisited in this work, the natural modes of the thin wing in incidence under the action of aerodynamic forces are calculated. The wing in this study has two degrees (...)

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Harmonic oscillations of a thin lamina in a quiescent viscous fluid: A numerical investigation within the framework of the lattice Boltzmann method

Article in Computers & Structures (2015)

Harmonic oscillations of a thin lamina in a quiescent viscous fluid: A numerical investigation within the framework of the lattice Boltzmann method

Alessandro De Rosis & Emmanuel Lévêque

The flow physics induced by the harmonic motion of a rigid thin lamina in a quiescent viscous fluid is investigated numerically by a combined lattice Boltzmann-immersed boundary approach. (...)

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Flow-parametric regulation of shear-driven phase separation in two and three dimensions

Article in Phys. Rev. E (2015)

Flow-parametric regulation of shear-driven phase separation in two and three dimensions

Lennon Ó Náraigh, Selma Shun & Aurore Naso

The Cahn-Hilliard equation with an externally prescribed chaotic shear flow is studied in two and three dimensions. The main goal is to compare and contrast the phase separation in two and three (...)

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Scalar and tensor spherical harmonics expansion of the velocity correlation in homogeneous anisotropic turbulence

Article in J. Turbul. (2015)

Scalar and tensor spherical harmonics expansion of the velocity correlation in homogeneous anisotropic turbulence

Robert Rubinstein, Susan Kurien & Claude Cambon

The representation theory of the rotation group is applied to construct a series expansion of the correlation tensor in homogeneous anisotropic turbulence. The resolution of angular dependence is (...)

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Large Reynolds number self-similar states of unstably stratified homogeneous turbulence

Article in Phys. Fluids (2015)

Large Reynolds number self-similar states of unstably stratified homogeneous turbulence

A. Burlot, B.-J. Gréa, F. S. Godeferd, C. Cambon &O. Soulard

We study the influence of the large scale energy distribution on the long term dynamics of unstably stratified homogeneous turbulence at high Reynolds number $Re = 10^6$, using a statistical (...)

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Non-isothermal droplet spreading/dewetting and its reversal

Article in J. Fluid Mech. (2015)

Non-isothermal droplet spreading/dewetting and its reversal

Yi Sui & Peter D. M. Spelt

Axisymmetric non-isothermal spreading/dewetting of droplets on a substrate is studied, wherein the surface tension is a function of temperature, resulting in Marangoni stresses. A lubrication (...)

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