ERCOFTAC Workshop

ASTROFLU VI

May 2024

Ecole Centrale de Lyon, Ecully (near Lyon, France)

Coordinators: Prof. Claude Cambon

 

Local scientific and organising committee: TBC

Aim:

The aim of our new ASTROFLU VI workshop is to once again gather, mainly in presence, the fluid mechanics specialists from the physics, engineering, astrophysics, and mathematics communities in order to exchange ideas and collaborate on our common interests. The workshop will be an opportunity to compare the tools, theoretical and numerical, used in the different SIG’s, SIG14 for rotating stratified flows, SIG39 for aeroacoustics, SIG42 for synthetic models of turbulence, SIG50 for geophysics and astrophysics, in addition to the leading SIG35 for multipoint turbulence structure and modelling.

One of the main themes will be the dynamics and structure of rotating stratified flows, possibly magnetized, for environment and engineering, upper atmosphere and astrophysics (e.g. accretion discs).

New mathematical and numerical approaches will be presented, for asymptotic `weak’ turbulence, especially when non-propagating modes coexist with dispersive wave modes, the latter being only considered in classical wave turbulence theory.

Prospective studies towards weakly compressible flows will be presented and discussed. It is expected to include aeroacoustics (SIG 39) beyond classical approximations, such as the Boussinesq hypothesis for density-stratified flows and the anelastic approximation in astrophysics.

Full programme: TBC
A list of speakers taking part: (provisional)
  • Tomas Bodnar (Prague,SIG 14 and Czech PC)
  • Andrzej Nowakovski (SIG 42, Sheffield, UK)
  • Abdelaziz Salhi (Tunis, Tunisia)
  • Rolf Walder (Zurich, and ENS Lyon)
  • Philippe Fraunié (MIO, Toulon, France)
  • Sébastien Galtier (LPP, Polytechnique, near Paris)
  • Thierry Lehner (Observatoire Paris-Meudon)
  • Antoine Briard (CEA, near Paris)
  • Ying Zhu (Nice)
  • Julian Scott (LMFA, Lyon)
  • Raffaele Marino (SIG 50, LMFA, Lyon)
History:

The first two local events "ASTROFLU" were principally organised by the Henri Bénard PC in Lyon, 12-13/11/2008 and 15/12/2011. The third one, which took place on November 20-21, 2013, attracted an European audience and was supported by ERCOFTAC with label and scholarships. The "ASTROFLU IV" was supported by ERCOFTAC and took place at Ecole Centrale de Lyon, January 24-25, 2019. "ASTROFLU V" took place in December 7-8, 2021 and was also supported by ERCOFTAC.