Université Paris-Saclay

  Fluides, Automatique
  et Systèmes Thermiques

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Presentation of the laboratory

Laboratory FAST (Fluides, Automatique et Systèmes Thermiques) is a CNRS research laboratory (UMR 7608), associated with University Paris-Sud.

The different topics are related to hydrodynamics, transfer, and mechanics and hydrodynamics in dispersed media.

The systems under study are simple or multicomponent fluids, macroscopic dispersed media (suspensions, granular materials, porous media, fractures...) and soft condensed matter (polymers, colloids, gels...)

Experiments (flow visualisation, quantitative image analysing, acoustic investigations, high resolution gravimetry, rheology...) as well as analytical models and numerical simulations are developed.

Research areas

Granular Materials and Suspensions

  • Suspensions (segregation, waves...)
  • Avalanches and erosion (granular ripples, dunes...)
  • Grain collisions
  • Granular pipe flows (intermittency, dynamical Janssen effect...)

Porous and Fractured Media

  • Fracture morphology at different scales
  • Flows in fractures
  • Propagation of a chemical front in porous media

Heat and Fluid Flow

  • Poiseuille-Rayleigh-Bénard flow
  • Drying and transfers
  • Thermo-solutal convection

Instabilities, Waves and Turbulence

  • Rotating flows: inertial waves and turbulence
  • Free-surface flows, waves and wakes
  • Interfacial instabilities (Kelvin-Helmholtz, Rayleigh-Taylor)
  • Viscous flows, coiling and buckling instabilities
  • Turbulence and mixing in miscible fluids