# 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 de Recherche > Turbulence & Instabilités > Publications T&I

## Publications T&I

La liste des publications de l’équipe peut être obtenue à partir de la base de publications du LMFA. Ci-dessous nos publications récentes en images.
Retrouvez toutes nos publications 2017 et 2018

Article dans J. Fluid Mech. (2018)

### The effective diffusivity of ordered and freely evolving bubbly suspensions

Aurore Loisy, Aurore Naso & Peter D. M. Spelt

We investigate the dispersion of a passive scalar such as the concentration of a chemical species, or temperature, in homogeneous bubbly suspensions, by determining an effective diffusivity (...)

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Article dans Phys. Rev. E (2018)

### Self-similar regimes of turbulence in weakly coupled plasmas under compression

Giovanni Viciconte, Benoît-Joseph Gréa, & Fabien S. Godeferd

Plasmas under strong compression, as existing in inertial confinement fusion capsules, experience a tremendous growth of their viscosity coefficient due to the temperature increase. It is known (...)

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Article dans Solar Physics (2018)

### On the Statistical Properties of Turbulent Energy Transfer Rate in the Inner Heliosphere

Luca Sorriso-Valvo, Francesco Carbone, Silvia Perri, Antonella Greco, Raffaele Marino & Roberto Bruno

The transfer of energy from large to small scales in solar wind turbulence is an important ingredient of the long-standing question of the mechanism of the interplanetary plasma heating. Previous (...)

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Article dans Fluid Dyn. Res. (2018)

### Nonlinear travelling waves in rotating Hagen-Poiseuille flow

Benoît Pier & Rama Govindarajan

The dynamics of viscous flow through a rotating pipe is considered. Small-amplitude stability characteristics are obtained by linearizing the Navier—Stokes equations around the base flow and (...)

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Article dans Phys. Rev. Fluids (2018)

### Cascades of energy and helicity in axisymmetric turbulence

Bo Qu, Aurore Naso, & Wouter J. T. Bos

A spectral analysis of strictly axisymmetric turbulence is performed. Both freely decaying and statistically steady flows are considered. In helical flows we identify a dual cascade, where energy (...)

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Article dans Phys. Rev. Fluids (2018)

### Settling and collision between small ice crystals in turbulent flows

Jennifer Jucha, Aurore Naso, Emmanuel Lévêque, and Alain Pumir

Ice crystals are present in a variety of clouds, at sufficiently low temperature. We consider here mixed-phase clouds which, at temperature ≳−20$^\circ$C, contain ice crystals, shaped approximately (...)

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Article dans J. Fluid Mech. (2018)

### Level-set simulations of a 2D topological rearrangement in a bubble assembly : effects of surfactant properties

A. Titta, M. Le Merrer, F. Detcheverry, P. D. M. Spelt & A.-L. Biance

A liquid foam is a dispersion of gas bubbles in a liquid matrix containing surface-active agents. Its flow involves the relative motion of bubbles, which switch neighbours during a so-called (...)

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Article dans Int. J. Thermal Science (2018)

### Mechanical stirring influence on solute segregation during plane front directional solidification

M. Chatelain, V. Botton, M. Albaric, D. Pelletier, B. Cariteau, D. Abdo, M. Borrelli

The present paper focuses on directional solidification processes for photovoltaic silicon purification. The use of a mechanical stirrer in the melt to enhance impurity segregation is (...)

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Article dans Phys. Rev. Lett. (2017)

### Statistical Model for the Orientation of Nonspherical Particles Settling in Turbulence

K. Gustavsson, J. Jucha, A. Naso, E. Lévêque, A. Pumir, and B. Mehlig

The orientation of small anisotropic particles settling in a turbulent fluid determines some essential properties of the suspension. We show that the orientation distribution of small heavy (...)

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Article dans Phys. Rev. Fluids (2017)

### Disproportionate entrance length in superfluid flows and the puzzle of counterflow instabilities

J. Bertolaccini, E. Lévêque, and P.-E. Roche

Systematic simulations of the two-fluid model of superfluid helium (He-II) encompassing the Hall-Vinen-Bekharevich-Khalatnikov (HVBK) mutual coupling have been performed in two-dimensional pipe (...)

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