I am an associate professor (Maitre de
confĂ©rences) at Ecole Normale Superieure (ENS) and a
researcher at the Laboratory of Physics of ENS
(LPENS), in the Nonlinear Physics group.

Since September 2020, I am a junior member of the
Institut Universitaire de France (IUF), and I am
entitled to supervise research [HDR] since 2018.

Aside from research, I teach fluid dynamics,
instabilities, statistical physics, thermodynamics and experimental
physics (undergraduate and master).

# Research interests

My research focuses on non-linear physics and non-equilibrium phenomena. I combine laboratory experiments, theoretical analyses and numerical simulations to study a range of phenomena, including instabilities, magnetohydrodynamics, dynamical systems, chaos and turbulence. The aim is to deepen our understanding of the fundamental mechanisms underlying these complex macroscopic systems. This research contributes to the development of practical energy technologies - such as batteries or electromagnetic pumps - and also provides new models in astrophysics and geophysics, including those related to stars, accretion disks and oceanic/atmospheric dynamics. Below are some typical examples of my current interests:

## Energy conversions in hydrodynamics

## Astrophysical Fluid dynamics and climate physics

## Turbulence, waves and instabilities

## Chaos and nonlinear dynamics

I am focused on understanding the mechanisms
that control various energy conversions involving
fluids, many of which are still poorly
understood. For example, flow instabilities and
turbulence often play a critical role in mediating
the efficiency of energy
transformations. Similarly, electrically conducting fluids
exhibit a coupling between fluid motion and
electromagnetism which can lead to novel energy technologies. We investigate these problems from a
fundamental perspective, while also working on the
development of new technologies such as liquid
thermoelectricity and electromagnetic pumps.
* > more details here...*

Astrophysical fluid dynamics deals with the
application of hydrodynamics to the motion of fluids
encountered in space, such as planetary or stellar
interiors, accretion disks and galaxies. Thanks to the
growing amount of telescope observations and space
missions in recent years, whole sections of the theory
of such flows are now actively debated. In our group,
we combine laboratory experiments, theory and numerical
modeling to understand the mechanisms involved in some
of these astrophysical systems. Some part of my
activity is also dedicated to studying geophysical
phenomena, including tornadoes and oceanic vortex flows.
* > more details here...*

The study of turbulence is one of the most active
research area. We developed several laboratory
experiments in order to adress various questions
related to turbulence, like the transport properties of
turbulent flows, the dimensionality of turbulence or
its statistical properties. Similarly, waves are
ubiquitous in both nature and industrial systems. Most
of the time, they are closely related to the generation
of instabilities in the flow, and we use laboratory
experiments to study the stability of such flows and
the associated wave dynamics.
* > more details here...*

In several physical problems, a modelization using a
few coupled differential equations is very useful to
understand the non-linear dynamics of complex
systems. I am interested in fluids dynamics situations
in which a low dimensional behavior is observed,
despite the apparently large number of degrees of
freedom. It is still unclear why and how some very
complex and turbulent systems can be correctly
reproduced by extremely simple models.
* > more details here...*