The different fundamental physics questions I worked on are mostly curiosity driven and often inspired by environmental phenomena. To study these questions, I combine laboratory experiments and theoretica modelisation to visualise and quantify the importance of different physical mechanisms at play and to make a link with microscopic/mesoscopic events with macroscopic behavior.
Here is a short description of the current activities. For previous studies, please see the publications or the PhD of the different students.
Bubbles rise in a confined granular suspension
In this work, we study the rising dynamics of bubbles rising in a Hele-Shaw cell containing a suspension of particles. An important feature I am interested in is the transition between the viscous to the inertial regime.
Collaborator: V. Vidal, J. Soundar (LMFA/UCBL), B. Monnet (PhD), C. Madec (PhD)
Nonlinearities and mixing for attractor in rotating stratified fluid
This part aims at understanding the non-linear behavior of internal gravity waves in rotating stratified fluid. Due to the peculiar dispersion relation of oceanic inertia-gravity waves, successive focusing reflections of internal wave in a closed domain may result in the formation of an attractor, a limit cycle for the beam (see picture). Currently, I am working on the linear formation and the non-linear behavior of an axisymmetric wave attractor in a conical domain. Another study considers the quantification of mixing induced by wave breaking after the successive focusing reflexions.
Collaborator: T. Dauxois, P. Odier, Y. Onuki (Kyushu University), D. Varma (post-doc), C. Pacary (PhD), J. Deleuze (PhD)
