Post doc on Geophysical Fluid Dynamics

IRPHIE/CNRS

Fixed term contract

Marseille, France

#oceans #fluid #experimental #modelisation

The IRPHE (Institut de Recherche sur les Phénomènes Hors Equilibre) offers a post-doc on experimental and numerical geophysical fluid dynamics.

Host organisation

The IRPHE, a joint research unit of Aix-Marseille University, CNRS and École Centrale Marseille, is a multidisciplinary institute. Its research topics mainly concern fluid mechanics, energetics in the broad sense, including combustion and reactive systems, the physics of fronts and interfaces, the self-organisation of non-equilibrium systems, biomechanics and biophysics, rotating flows and in particular those linked to astrophysics and geophysics, interactions between the ocean and the atmosphere, as well as the environmental applications of turbulence.

The studies are fundamental and the primary objective is the understanding of phenomena and the advancement of knowledge, an irreplaceable source of the teaching-research link. They are motivated by their applications and by the technological obstacles encountered by applied research and by the effects observed in natural environments, with the aim of identifying the intrinsic effects and then transferring the knowledge acquired.

The sectors concerned are transport in the broadest sense, including aeronautics, the automotive sector, the space sector, energy as a crucial issue in this phase of economic transformation, materials science, life sciences and many societal concerns such as health, the environment and risks. The methods used to address these topics can be theoretical, experimental and numerical.

Job description

The focus will be on libration (periodic modulation of rotation speed, Le Bars 2015), which is easier to access in the laboratory and holds promise for objects with ice shells that are deformed by tides.
The study will focus on turbulence and how this can be generated by the release of a large elliptical cylinder filled with a stratified liquid (using salt water). Using a similar configuration, the candidate will also study the turbulence generated by the release of a small-scale topography and how it affects the stratified ocean above.

This parametrically strong system can also be studied numerically using spectral element simulations to work in the same complex geometry as the experiment. The objective is to quantify the mixing induced by parametrically excited instabilities and turbulence of an initially linearly stratified system, considering both large and small scale topographic couplings.

Profile and skills

  • PhD in fluid dynamics
  • Good level in scientific English (written and spoken)

Professional skills

  • Adaptability
  • Teamwork
  • Autonomy
  • Good communication (written and spoken)
  • Writing skills
  • Passion and excitement

Contract type

Fixed term, 1 year renewable

Location

IRPHE, 49 rue F.Joliot-Curie, 13384 Marseille Cedex 13, France

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