We are very pleased to invite you to join us in Grenoble, France for the 28th IAHR Symposium on Hydraulic Machinery and Systems. The symposium, co organized by the SHF (French Hydraulic Society), will be held from 4 to 8 July 2016 at the Energy, Water & Environmental Sciences School of the Grenoble Institute of Technology. It will offer a unique opportunity for leading scientists and industrial experts to exchange latest advances on hydraulic machines and systems issues, sustainable (...)
Bernard Castaing, Pr invité ENS-Lyon, membre de l’Académie des Sciences, collaborateur externe UJF
Titre/Title : la turbulence en phase superfluide (5) Contact : Christophe Baudet (équipe EDT) Résumé/Abstract : Dans le cadre de son statut de collaborateur du LEGI, Bernard Castaing donnera une série de 5 cours de 1h30 sur la turbulence en phase superfluide (He 2,7 K) organisé de la façon suivante (programme provisoire donné à titre indicatif) : Présentation de l’hélium comme matériau. Diagramme de phases. Phases liquides superfluide et normale. Réflexions a priori sur le champ de vitesse d’un (...)
Homogeneous and isotropic turbulence was first formalized by Kolmogorov (1941), through dimensional analysis. He managed to show that the spectral density of kinetic energy, E(k), was following a k−5/3 law. This behaviour is known as Kolmogorov’s cascade. For many geophysical and astrophysical flow, kinetic helicity plays an important role. For instance, Parker (1955) showed that for conductive fluids such as Sun, kinetic helicity could contribute to amplify the magnetic field. Brissaud et al (...)
The Laboratory of Geophysical and Industrial Flows (LEGI) is a public research laboratory of the University of Grenoble. It is a joint research unit (UMR 5519) common to the National Center for Scientific Research ([CNRS]), Université Joseph Fourier (UJF) and Institut National Polytechnique de Grenoble (Grenoble INP), which gathers more than 180 people, including 70 permanent and as many PhD students and postdocs.
Research activities in Fluid Mechanics and Transfer conducted at LEGI combine modeling, testing (more than 40 experimental facilities including large equipments), high performance numerical simulation (parallel computers, national computing centers ...) and the development of innovative measuring instruments. These activities are related to numerous fields of application within environmental as well as industrial issues.
Dynamics of turbulent flows: hydrodynamics, mixing, transfer (heat, mass ...), advanced simulations.
Geophysical Fluid Dynamics: Process and simulations of natural systems (ocean, atmosphere, coastal dynamics, rivers...), understanding of climate changes and development of forecasting tools.
Flows with strong hydrodynamic coupling: Physics and modeling of flows with high density contrast, multiphase flows (bubbles, drops ...)
Management of natural environment: Oceanography - Coastal and river - Atmosphere ...
Engineering and environment: clean Processes, effluent treatment, aerospace and transportation, health, safety and security ...
Engineering and energy: new energy sources and systems, intensification of energy transfer, optimisation ...
The LEGI develops much of its activities through research contracts with private partners as well as public (regional, national, European and international), academic collaborations, thesis and post-doctorate grants, expertise, participation in operations of industrial startup...
LEGI is very active in research training: we welcome a large number of PhD students, mainly in the frame of two ’Doctoral Schools’: "Mechanics and Energy" and "Earth Environment Universe". Each year, dozens of students with all backgrounds (Masters, engineering schools, license, IUT ...) choose LEGI to carry out their internship.
The LEGI hosts more than 70 doctoral students and postdocs. Online you will find testimonials from former and current PhD students who convey their experience.
It is possible to go further by consulting the online activity reports.