|A.24 C. Tauber, P. Delplace, A. Venaille 2019. Anomalous bulk-edge correspondence in continuous media - submitted .pdf
that the number of chiral edge states filling a frequency gap is
generally not topologically protected in continuous systems with a
sharp boundary, but that a bulk-edge correspondence is recovered when ghost modes hidden in the asymptotic part of the spectrum are taken into account.
|A.23 C. Tauber, P. Delplace, A. Venaille 2019. A bulk-interface correspondence for equatorial waves - Journal of Fluid Mechanics .pdf
that a topological index can be assigned to a given hemisphere for
shallow water flows in the presence of odd viscous terms, and discusses
consequences for equatorial waves.
|A.22 M. Perrot, P. Delplace, A. Venaille 2019. Topological transition in stratified fluids - Nature Physics .pdf featured as News and Views by T. Dowling
Relates the existence of atmospheric
Lamb waves to peculiar topological
properties carried by acoustic and internal gravity waves when mirror symmetry in vertical direction is broken by gravity.
|A.21 A. Renaud, L.-P. Nadeau, A. Venaille 2019.
Periodicity disruption of a model quasi-biennial oscillation of equatorial winds - Physical Review Letter .pdf , featured in Physics
the existence of a quasi-periodic route to chaos in idealized models of
equatorial atmospheres, and investigates the response to external
perturbations, motivated by an odd recent evolution of the QBO.
|A.20 A. Renaud, A. Venaille 2018. Boundary streaming by internal
waves - Journal of
Fluid Mechanics .pdf
mean-flow generation by damped internal gravity waves close to an
|A.19 T. Dauxois, S. Joubaud, P. Odier, A.
Venaille 2018. Instabilities
wave beams - Annual Review of
Fluid Mechanics 2018 .pdf
the peculiar effects of non-linearities on internal wave beams,
including streaming and triadic resonant instability.
|A.18 P. Delplace, J.B. Marston, A. Venaille 2017.
origin of equatorial waves - Science .pdf featured in Physicsworld by P. Bal, communiqué CNRS
Shallow water waves
singularities as a consequence of Earth rotation breaking
time-reversal symmetry. This can be related to the emergence of
two unidirectional trapped modes along the equator, the celebrated
Kelvin and Yanai waves.
|A.17 Y. Yasuda, F. Bouchet, A. Venaille 2017.
Interpretation of vortex-split stratospheric sudden warmings in
terms of equilibrium statistical mechanics - Journal of the
Atmospheric Science .pdf
splitting of the polar vortex as an abrupt transition from a
quasi-stationary cyclonic state to an anticyclonic equilibrium state
when an effective topography is varied.
|A.16 A. Venaille, L. Gostiaux, J. Sommeria, 2016.
statistical mechanics approach to mixing in stratified fluids - Journal of Fluid Mechanics
statistical mechanics to predict how
much mixing occurs when a given amount of energy is injected into a
|A.15 A. Renaud, A. Venaille, F. Bouchet, 2016.
Equilibrium statistical mechanics
and energy partition for the shallow water model - Journal of Statistical Physics
computation of statistical equilibrium states of the shallow water
model using large deviation theory. Predicts the concommitant emergence
of a large scale vortical flow and energy loss towards small scales on
the form of inertia-gravity
|A.14 A. Venaille, T. Dauxois, S. Ruffo, 2015.
Violent relaxation in
two-dimensional flows with varying interactions - Physical Review E - Rapid
that the range of interaction between fluid particles plays a crucial
role in selecting the large scale flow topology during the relaxation
of an unstable initial state towards equilibrium.
|A.13 A. Venaille, L.-P. Nadeau, G. K. Vallis,
turbulence - Physics of Fluids, .pdf Research
surface intensified jets
in the large bottom friction limit of geostrophic turbulence.
Their dynamics results from a competition between baroclinic
instability and the relaxation
toward an equilibrium state.
intermediate friction large friction
|A.12 G. Bordes, A. Venaille, S. Joubaud, P.
Odier, T. Dauxois, 2012. Experimental
observation of strong mean flows generated by internal gravity waves
- Physics of Fluids
that a monochromatic wave beam propagating in a stratified viscous
induces a robust and strong jet flowing outward the wave generator.
|A.11 A. Venaille, 2012. Bottom-trapped
statistical equilibrium states above topography anomalies - Journal of Fluid
that in presence of a sufficiently large topographic bump, an initial
surface-intensified random velocity field evolves towards a
bottom-trapped anticyclonic mean flow.
|A.10 A. Venaille, G. K. Vallis, S.M. Griffies,
role of beta effect in barotropization processes - Journal of Fluid
that the presence of planetary vorticity gradients favors the tendency
to spread the energy on the vertical in stratified quasi-geostrophic
turbulent flows, and that statistical mechanics arguments account for
|A.9 F. Bouchet, A. Venaille, 2012. Statistical
geophysical flows - Physics Reports .pdf
paper with emphasis on Robert-Sommeria-Miller
equilibrium theory. Former statistical approaches are also
discussed, as well as current developments in out of equilibrium
Venaille, G.K. Vallis, K.S. Smith, 2011. Baroclinic
turbulence in the ocean:
analysis with primitive equation and quasi-geostrophic simulations -
Journal of Physical Oceanography
hypothesis that oceanic eddies result from
local baroclinic instabilities, and examines the factors determining
their distribution, length scale, magnitude and structure.
|A.7 A. Venaille, J. Le
Sommer, J.-M. Molines, B. Barnier, 2011. Stochastic
variability of large scale oceanic flows above topography anomalies
- Geophysical Research Letters
.pdf , communiqué CNRS
mechanism is proposed to interpret the dynamics of
eddy-driven recirculations above closed contours of bottom topography.
This may account for the observed low frequency variability of the
Venaille, F. Bouchet, 2011. Oceanic
rings and jets as
statistical equilibrium states - Journal of Physical Oceanography
mechanics arguments, oceanic rings are interpreted as "bubbles" of
homogenized potential vorticity. It may provide an explanation for
ubiquity, their shape, and their drift.
|A.5 A. Venaille, F.
Bouchet, 2011. Solvable
phase diagrams and ensemble inequivalence for two-dimensional and
geophysical turbulent flows - Journal of Statistical Physics .pdf
paper of PRL09 below. Discusses symmetry breaking associated with
the generic occurrence of ensemble inequivalence, and the surprising
effect of the Rossby radius of deformation (a screening length
| A.4 A. Venaille, F. Bouchet, 2009. Statistical
Ensemble Inequivalence and Bicritical Points for Two-Dimensional Flows
and Geophysical Flows - Physical Review Letters
is shown that statistical ensemble inequivalence and negative
specific heat occur for a wide class of models and parameters,
including Fofonoff flows, and
are related to previously observed phase transitions in the flow
|A.3 A. Venaille, J.
Is mixing a self-convolution process ? - Physical Review Letters
tests of the self-convolution model for mixing of a passive tracer. It
is shown that
the model is doing well at sufficiently late stage of
| A.2 A. Venaille, J.
A dynamical equation for the distribution of a scalar advected by
turbulence. - Physics
of Fluids .pdf
phenomenological arguments showing that the mixing of a
passive tracer through turbulent cascades may be represented as
a succession of self-convolutions of the tracer distribution.
| A.1 A. Venaille, P.
Varona, M.I. Rabinovich, 2005.
Synchronization and coordination of sequences in two neural ensembles
Review E .pdf
properties emerging from the coupling
of two chaotic systems are investigated. This
illustrates how a mollusk can scan randomly an area to find a
prey, while keeping some efficiency in swimming.