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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The role of very low-Reynolds hydrodynamics on the transfer of information among active agents

Article in J. Stat. Phys. (2015)

The role of very low-Reynolds hydrodynamics on the transfer of information among active agents

Alessandro De Rosis, Francesco Ubertini, Stefano Ubertini & Sauro Succi

We investigate the role of hydrodynamic interactions on the decision-making and leader-identification processes within a group of fifty small-size active individuals, immersed in a viscous fluid (...)

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Unsteady behavior of corner separation in a compressor cascade: Large eddy simulation and experimental study

Article in Proc. IMechE Part A, J. Power Energy (2015)

Unsteady behavior of corner separation in a compressor cascade: Large eddy simulation and experimental study

Feng Gao, Gherardo Zambonini, Jérôme Boudet, Xavier Ottavy, Lipeng Lu, Liang Shao

The present study carried out a pure large eddy simulation (LES) on a NACA65 linear compressor cascade (chord-based Reynolds number: 382 000), at an incidence angle of 4°. In this configuration, a (...)

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Large-Eddy Simulations of Magnetohydrodynamic Turbulence in Heliophysics and Astrophysics

Article in Space sci. rev. (2015)

Large-Eddy Simulations of Magnetohydrodynamic Turbulence in Heliophysics and Astrophysics

Mark Miesch, William Matthaeus, Axel Brandenburg, Arakel Petrosyan, Annick Pouquet, Claude Cambon, Frank Jenko, Dmitri Uzdensky, James Stone, Steve Tobias, Juri Toomre & Marco Velli

We live in an age in which high-performance computing is transforming the way we do science. Previously intractable problems are now becoming accessible by means of increasingly realistic (...)

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Performance estimation of linear algebra numerical libraries

Article in J. Numer. Math. (2015)

Performance estimation of linear algebra numerical libraries

Alessandro De Rosis

In this work, numerical algebraic operations are performed by using several libraries whose algorithm are optimized to drain resources from hardware architecture. In particular, dot product of (...)

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Large-eddy simulation of 3-D corner separation in a linear compressor cascade

Article in Phys. Fluids (2015)

Large-eddy simulation of 3-D corner separation in a linear compressor cascade

Feng Gao, Wei Ma, Gherardo Zambonini, Jérôme Boudet, Xavier Ottavy, Lipeng Lu & Liang Shao

The increase of the thrust/weight ratio of aircraft engines is extremely restricted by different 3-D flow loss mechanisms. One of them is the corner separation that can form at the junction (...)

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Solute segregation in directional solidification: Scaling analysis of the solute boundary layer coupled with transient hydrodynamic simulations

Article in J. Cryst. Growth (2015)

Solute segregation in directional solidification: Scaling analysis of the solute boundary layer coupled with transient hydrodynamic simulations

M. Chatelain, M. Albaric, D.Pelletier & V.Botton

The objective of the present paper is to study the ability of an order of magnitude analysis (Garandet et al., 2012) to give a realistic picture of segregation patterns in vertical Bridgman (...)

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Transition from multiplicity to singularity of steady natural convection in a tilted cubical enclosure

Article in Phys. Rev. E (2015)

Transition from multiplicity to singularity of steady natural convection in a tilted cubical enclosure

Juan F. Torres, Daniel Henry, Atsuki Komiya & Shigenao Maruyama

The transition from the complex Rayleigh-Bénard convection to the simple heated-from-the-sides configuration in a cubical cavity filled with a Newtonian fluid is numerically studied. The cavity is (...)

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Numerical study of a flapping liquid sheet sheared by a high-speed stream

Article in Int. J. Multiph. Flow (2015)

Numerical study of a flapping liquid sheet sheared by a high-speed stream

Nicolas Odier, Guillaume Balarac, Christophe Corre & Vincent Moureau

A numerical study of a liquid sheet sheared on both sides by a high-speed stream is performed in this work, at moderate density and velocity ratio between phases. Near the injection, an (...)

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On the scaling of temperature fluctuations induced by frictional heating

Article in Phys. Fluids (2015)

On the scaling of temperature fluctuations induced by frictional heating

Wouter J. T. Bos, Robert Chahine & Andrey V. Pushkarev

The temperature fluctuations generated by viscous dissipation in an isotropic turbulent flow are studied using direct numerical simulation. It is shown that their scaling with Reynolds number is (...)

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 Stability of a flow down an incline with respect to two-dimensional and three-dimensional disturbances for Newtonian and non-Newtonian fluids

Article in Phys. Rev. E (2015)

Stability of a flow down an incline with respect to two-dimensional and three-dimensional disturbances for Newtonian and non-Newtonian fluids

Mohamed Hatem Allouche, Séverine Millet, Valéry Botton, Daniel Henry, Hamda Ben Hadid, and François Rousset

Squire’s theorem, which states that the two-dimensional instabilities are more dangerous than the three-dimensional instabilities, is revisited here for a flow down an incline, making use of (...)

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