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

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 du quadriennal en 2014, 2015, 2016, 2017 et 2018

The size and lifetime of organised eddies in a non-solid-body rotating turbulence experiment

Article dans Eur. J. Mech. B-Fluids (2018)

The size and lifetime of organised eddies in a non-solid-body rotating turbulence experiment

Lian Gan & Andrea Maffioli

This paper follows our previous study of forced non-solid-body rotating turbulence and summarises results on the eddy size and lifetime in the same flow. The experiment is conducted in a (...)

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A new strategy for the numerical modeling of a weld pool

Article dans Comptes Rendus Mécanique (2018)

A new strategy for the numerical modeling of a weld pool

Yassine Saadlaoui, Éric Feulvarch, Alexandre Delache, Jean-Baptiste Leblond & Jean-Michel Bergheau

Welding processes involve high temperatures and metallurgical and mechanical consequences that must be controlled. For this purpose, numerical simulations have been developed to study the effects (...)

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Vertical drafts and mixing in stratified turbulence : Sharp transition with Froude number

Article dans Europhys. Lett. (2018)

Vertical drafts and mixing in stratified turbulence : Sharp transition with Froude number

Fabio Feraco, Raffaele Marino, Alain Pumir, Leonardo Primavera, Pablo D. Mininni, Annick Pouquet & Duane Rosenberg

We investigate the large-scale intermittency of vertical velocity and temperature, and the mixing properties of stably stratified turbulent flows using both Lagrangian and Eulerian fields from (...)

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Three-dimensional instability of a flow past a sphere : Mach evolution of the regular and Hopf bifurcations

Article dans J. Fluid Mech. (2018)

Three-dimensional instability of a flow past a sphere : Mach evolution of the regular and Hopf bifurcations

Andrea Sansica, Jean-Christophe Robinet, Frédéric Alizard & Éric Goncalvès

A fully three-dimensional linear stability analysis is carried out to investigate the unstable bifurcations of a compressible viscous fluid past a sphere. A time-stepper technique is used to (...)

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A flow-pattern map for phase separation using the Navier–Stokes–Cahn–Hilliard model

Article dans Eur. J. Mech. B-Fluids (2018)

A flow-pattern map for phase separation using the Navier–Stokes–Cahn–Hilliard model

Aurore Naso & Lennon Ó Náraigh

We use the Navier–Stokes–Cahn–Hilliard model equations to simulate phase separation with flow. We study coarsening — the growth of extended domains wherein the binary mixture phase separates into its (...)

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Spectral energy scaling in precessing turbulence

Article dans Phys. Rev. E (2018)

Spectral energy scaling in precessing turbulence

A. Khlifi, A. Salhi, S. Nasraoui, F. Godeferd & C. Cambon

We study precessing turbulence, which appears in several geophysical and astrophysical systems, by direct numerical simulations of homogeneous turbulence where precessional instability is (...)

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Numerical analysis of the flapping mechanism for a two-phase coaxial jet

Article dans Int. J. Multiph. Flow (2018)

Numerical analysis of the flapping mechanism for a two-phase coaxial jet

NicolasOdier, Guillaume Balarac & ChristopheCorre

A numerical study of a coaxial liquid jet sheared by an annular high-speed stream is performed at moderate density and velocity ratio between phases. The destabilization mechanism of the jet is (...)

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Turbulence and turbulent pattern formation in a minimal model for active fluids

Article dans Phys. Rev. Fluids (2018)

Turbulence and turbulent pattern formation in a minimal model for active fluids

Martin James, Wouter J. T. Bos, and Michael Wilczek

Active matter systems display a fascinating range of dynamical states, including stationary patterns and turbulent phases. While the former can be tackled with methods from the field of pattern (...)

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Advanced spectral anisotropic modelling for shear flows

Article dans J. Turbul. (2018)

Advanced spectral anisotropic modelling for shear flows

Antoine Briard, T Gomez & Claude Cambon

In this work, the spectral modelling developed in MCS (Mons, Cambon, Sagaut. J Fluid Mech. 2016) for shear-driven turbulence is further analysed and then improved. First, using self-similarity (...)

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 Effects of Discrete Energy and Helicity Conservation in Numerical Simulations of Helical Turbulence

Article dans Flow Turbul. Combust. (2018)

Effects of Discrete Energy and Helicity Conservation in Numerical Simulations of Helical Turbulence

Francesco Capuano & Donato Vallefuoco

Helicity is the scalar product between velocity and vorticity and, just like energy, its integral is an inviscid invariant of the three-dimensional incompressible Navier-Stokes equations. (...)

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Instability of pressure-driven gas–liquid two-layer channel flows in two and three dimensions

Article dans J. Fluid Mech. (2018)

Instability of pressure-driven gas–liquid two-layer channel flows in two and three dimensions

Lennon Ó Náraigh & Peter D. M. Spelt

We study unstable waves in gas–liquid two-layer channel flows driven by a pressure gradient, under stable stratification, not assumed to be set in motion impulsively. The basis of the study is (...)

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Comparison between a generalized Newtonian model and a network-type multiscale model for hemodynamic behavior in the aortic arch : Validation with 4D MRI data for a case study

Article dans J. Biomechanics (2018)

Comparison between a generalized Newtonian model and a network-type multiscale model for hemodynamic behavior in the aortic arch : Validation with 4D MRI data for a case study

Marine Menut, Loïc Boussel, Xavier Escriva, Benyebka Bou-Saïd, Hélène Walter-Le Berre, Yann Marchesse, Antoine Millon, Nellie Della Schiava, Patrick Lermusiaux, John Tichy

Blood is a complex fluid in which the presence of the various constituents leads to significant changes in its rheological properties. Thus, an appropriate non-Newtonian model is advisable ; and (...)

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