Workshop Turbulence and Instabilities in Plasma Flows

Location

École centrale de Lyon

Motivation

Plasma flows are ubiquitous in nature – pervading the Earth’s environment through the interplanetary space – while hot and cold plasmas are operated every day in research, industrial and public facilities, with state of the art plasma technologies being already at the base of modern fusion reactors, aerospace engineering, navigation and communication infrastructures. Advancing fundamental research on plasmas is therefore critical to support the development of sectors that are strategic worldwide and to underpin the many technological applications based on plasma frameworks. This workshop will address fundamental issues and major science and engineering applications of the research on plasmas, with a special focus on non-linear turbulent dynamics and flow instabilities. The event will gather scientists working on novel theoretical and numerical methods for plasma modeling, space plasmas and next generation of experimental fusion and cold plasma facilities. The workshop will host also the kick-off meeting of the recently approved ERCOFTAC “Special Interest Group” (SIG 50) on geophysical fluids and astrophysical plasmas.

Program

November, the 25th

9:00 – 9:45 : Welcome coffee and registration

9:45 – 10:00 : Workshop opening

10:00 – 10:15 : Jean-Pierre Bertoglio (ECL delegate for research)

10:15 – 12:30 : Turbulence, Waves and Instabilities in Geophysical Fluids and Astrophysical Plasmas (I) - ERCOFTAC SIG#50 kickoff

• 10:15 Roberto Bruno
  Solar wind turbulence from energy injection scales to dissipation scales

• 11:00 Sébastien Galtier
  Turbulence, dissipation and heating in the solar wind

• 11:45 Thierry Passot
  Energy and generalized cross-helicity in strong imbalanced collisionless Alfvén wave turbulence

Lunch @ École Centrale de Lyon

14:30 – 18:00 : Fundamental Plasmas (I)

• 14:30 Axel Brandenburg
  Reversed dynamo, reversed helicity, and diagnosing it

• 15:15 Benjamin Favier
  Internal gravity waves generated by turbulent flows

16:00-16:30 Coffee break

• 16:30 Alain Pumir
  Turbulence generation through an iterative cascade of the elliptical instability

• 17:15 Aziz Sahli
  Nonlinear effects on the precessional instability in magnetized turbulence

Cocktail @ École Centrale de Lyon

November, the 26th

9:00 – 12:15 : Fundamental Plasmas (II)

• 9:00 Sergey Nazarenko
  Rotating MDH turbulence

• 9:45 Nobumitsu Yokoi
  Transport and large large-scale instability in strongly compressible magnetohydrodynamic turbulence

10:30 – 11:00 Coffee break

• 11:00 Jan Friedrich
  Investigation tigation of small-scale intermittency in MHD turbulence: from the scaling features of longitudinal and transverse structure functions to a projection method on the universal features of MHD turbulence

• 11:45 Fabio Feraco
  Simulations of decaying parametric instability of an Alfvén wave in MHD

• 12:00 Wesley Agoua
  Generation of helicity in unstably stratified MHD

Lunch @ École Centrale de Lyon

14:00 – 18:15 : Turbulence, Waves and Instabilities in Geophysical Fluids and Astrophysical Plasmas (II) - ERCOFTAC SIG#50 kickoff

• 14:00 Jorge Chau
  Four dimensional quantification of Kelvin-Helmholtz instabilities in the polar summer mesosphere using volumetric radar imaging

• 14:45 Doris Folini
  10048^3 - Isothermal compressible turbulence re-visited

15:30 – 16:00 Coffee break

• 16:00 Fabien Godeferd
  Statistical modeling and direct numerical simulations for anisotropic turbulence in conducting fluids and plasmas

• 16:45 Rolf Walder
  Relativistic magnetic reconnection and particle acceleration

• 17:30 Romain Lucken
  Marginal stability and transport in low temperature magnetized plasmas