Thematic Season Program

Lagrangian Large Eddy Simulations via Physics Informed MachineLearning

Dissipation in turbulence in the presence of waves, and its intermittency scaling in rotating stratified flows.

Université Côte d'Azur and Observatoire Côte d'Azur are hosting a one-week conference on the topic of " Geophysical & Astrophysical Fluid Dynamics: Experiments and Models " (GAFDEM), from 11th to 15th September 2023 in Nice, France .GAFDEM aims at bringing together the international community studying the nonlinear dynamics of stratified, rapidly rotating, and possibly magnetized flows - whether applied to the modeling of oceans, planetary atmospheres or stellar plasmas. The conference will be the opportunity to discuss, in an informal setting, the latest experimental, theoretical and numerical progress toward understanding the fundamental mechanisms of instabilities, turbulence and transport in naturally occurring flows.

This two-week summer school aims to provide a modern viewpoint on the concept of cascades, a key notion formalized by Lewis F. Richardson a century ago. Mornings will be devoted to minicourse delivered by lecturers from the mathematics and the physics community. In the afternoons, participants will be offered to work in small groups on original research projects supervised by guest and local researchers.

The phenomenology of fluid turbulence, and its stochastic representation.

Turbulence predictability and spontaneous stochasticity

Turbulence in geophysical fluid dynamics.

Breakup of small particles in turbulent flows

Experimental techniques in turbulence measurements

Stochastic fluid mechanics and Boussinesq hypothesis

Prof. Alexei Mailybaev will be visiting from the Institute of Pure and Applied Mathematics (IMPA) in Rio de Janeiro. His current research interests tie to the mathematical physics of turbulent phenomena, in particular but not limited to spontaneous stochasticity, blow-ups and hidden symmetries.

Understanding particle dynamics in turbulence is relevant to mixing, combustion, and environmental pollution. The study of transport by turbulent flows has benefited greatly from the development of new experimental, numerical, and theoretical Lagrangian techniques. These have made it possible to investigate the statistics of the velocity, the acceleration, and the dispersion of both tracer and inertial particles. While the early Lagrangian studies were mainly concerned with the motion of point particles, in recent years the study of particle dynamics in turbulent flows has extended in several new directions. The Colloquium aims at discussing the recent advances and the open questions in the area of complex particle dynamics in turbulent flows by gathering scientists from both the physics and engineering communities.

Thermalization and hydrodynamics in an interacting integrable system: the case of hard rods

Blast and Splash in a one-dimensional cold gas

Finite time blowup of incompressible flows surrounding compressible bubbles evolving under soft equations of state

Prof. Abhishek Dhar (ICTS-TIFR, India) will be visiting Nice from April 1 to April 30.He will be hosted by R. Chetrite (LJAD). His research area relates to non-equilibrium statistical physics.

Dr. Robert Van Gorder is visiting from the University of Otago, New Zealand. As an applied mathematician, he uses tools from physical applied mathematics to study theoretical questions arising in fluid dynamics, pattern formation, quantum theory, and nonlinear waves.

Halfway through the IRP (International Research Project) between France and Israel, a Franco-Israeli conference From Non-equilibrium to Turbulence and Soft Matter will be organized on March 27-28-29, 2023 at the J.A Dieudonné Mathematical Laboratory in Nice.The organizers are Mokhtar Adda-Bedia (Lyon), Raphael Chetrite (Nice), Thomas Frisch(Nice) and Sergey Nazarenko(Nice).