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 et posters doctorants > Publications T&I 2020

Publications T&I 2020

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Partitioning Waves and Eddies in Stably Stratified Turbulence

Article dans Atmosphere (2020)

Partitioning Waves and Eddies in Stably Stratified Turbulence

Henri Lam, Alexandre Delache & Fabien Godeferd

We consider the separation of motion related to internal gravity waves and eddy dynamics in stably stratified flows obtained by direct numerical simulations. The waves’ dispersion relation links (...)

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Numerical study of extreme mechanical force exerted by a turbulent flow on a bluff body by direct and rare-event sampling techniques

Article dans J. Fluid. Mech. (2020)

Numerical study of extreme mechanical force exerted by a turbulent flow on a bluff body by direct and rare-event sampling techniques

Thibault Lestang, Freddy Bouchet & Emmanuel Lévêque

This study investigates, by means of numerical simulations, extreme mechanical force exerted by a turbulent flow impinging on a bluff body, and examines the relevance of two distinct rare-event (...)

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Single-particle Lagrangian statistics from direct numerical simulations of rotating-stratified turbulence

Article dans Phys. Rev. Fluids (2020)

Single-particle Lagrangian statistics from direct numerical simulations of rotating-stratified turbulence

Dhawal Buaria, Alain Pumir, Fabio Feraco, Raffaele Marino, Annick Pouquet, Duane Rosenberg & Leonardo Primavera

Geophysical fluid flows are predominantly turbulent and often strongly affected by the Earth’s rotation, as well as by stable density stratification. Using direct numerical simulations of forced (...)

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Transition from non-swirling to swirling axisymmetric turbulence

Article dans Phys. Rev. Fluids (2020)

Transition from non-swirling to swirling axisymmetric turbulence

Zecong Qin, Hugues Faller, Bérengère Dubrulle, Aurore Naso & Wouter Bos

Strictly axisymmetric turbulence, i.e., turbulence governed by the Navier-Stokes equations modified such that the flow is invariant in the azimuthal direction, is a system intermediate between (...)

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 Kolmogorovian active turbulence of a sparse assembly of interacting Marangoni surfers

Article dans Phys. Rev. X (2020)

Kolmogorovian active turbulence of a sparse assembly of interacting Marangoni surfers

Mickaël Bourgoin, Ronan Kervil, Cécile Cottin-Bizonne, Florence Raynal, Romain Volk & Christophe Ybert

Active matter, composed of self-propelled entities, forms a wide class of out-of-equilibrium systems that display striking collective behaviors, among which, the so-called active turbulence where (...)

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Mixing of non-Newtonian inelastic fluid in a turbulent patch of T-junction

Article dans J. Non-Newtonian Fluid Mech. (2020)

Mixing of non-Newtonian inelastic fluid in a turbulent patch of T-junction

Haining Luo, Alexandre Delache & Serge Simoëns

In this paper, we present result from a direct numerical simulation (DNS) of turbulent flow in a converging T-junction for both Newtonian (water) and non-Newtonian inelastic fluid (dilute Xanthan (...)

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