European Workshop on Superfluid turbulence from the perspective of numerics: modeling, methods and challenges

Location: Salle de réunion LR6 C 023, Centre Blaise Pascal, ENS-Lyon, France November 26th, 2012 - November 28th, 2012

• Emmanuel Lévêque, Laboratoire de Physique, Ecole Normale Supérieure de Lyon, France
• Philippe-Emmanuel Roche, Institut Neel, Grenoble, France
• Laurent Chevillard, Laboratoire de Physique, Ecole Normale Supérieure de Lyon, France
• Bernard Castaing, Laboratoire de Physique, Ecole Normale Supérieure de Lyon, France

• Administrative coordination: Samantha Barendson, CBP, ENS de Lyon, France (samantha.barendson@ens-lyon.fr)

The workshop is supported by:

• the Physics Laboratory at the ENS de Lyon
• the Centre Blaise Pascal

Monday

14:00 Welcome message, etc… Leveque, Roche
14:05 Brachet: Gross-Pitaevskii description of superfluid dynamics at finite-temperature: a short review of recent results
14:35 Salort: Continuous 2 fluid model with a circulation-quantum-consistent truncation
15:05 Baggaley: Tree methods, and the detection of vortical structures in the vortex filament method
15:35 (Coffee break)
15:50 Round table: Beyond the limitations of the 3 traditional models of superfluid turbulence - Facilitator: Brachet
17:00 (End)

Tuesday

09:00 Danaila: Advanced numerical methods for computing vortex states in Bose-Einstein condensates
09:30 Kerr: Time scaling and dynamics near GP reconnection events
10:00 Salman: Simulating Vortex Dynamics with the Gross-Pitaevskii Equation
10:30 (Coffee break)
10:50 Round table: New numerical approach / Challenge on the numerical side - Facilitator: Kerr
12:00 (Lunch)

14:00 Barenghi: Properties of homogeneous isotropic quantum turbulence
14:30 Sergeev: Time-dependent spectra in zero-temperature limit. Reconnections, anisotropy, and (perhaps) a 3D inverse cascade
15:00 Skrbek: Recent Prague second sound and visualization experiments as a source for simulations QT studies
15:30 (Coffee break)
15:50 Round table: Open problems waiting for numerical insight (KW cascade excluded) - Facilitator: Barenghi
17:00 (End)

Wednesday

09:00 Hanninen: Kelvin waves: identification and dynamics
09:30 Krstulovic: Kelvin-wave cascade and dissipation in low-temperature superfluids vortices
10:00 Proment: Kelvin wave interactions and decay in the Gross-Pitaevskii model
10:30 (Coffee break)
10:50 Laurie: The nonlocality of the Kelvin-wave energy transfer
11:20 Round table: Kelvin wave cascade at 0K - Facilitator: Hanninen
12:30 (Lunch and end)

2 European Researchers invited

  BAGGALEY Andrew, School of Mathematics and Statistics, University of Glasgow, UK
  BARENGHI Carlo, School of Mathematics and Statistics, Newcastle University, UK
  BRACHET Marc, Laboratoire de Physique Statistique, Ecole Normale Supérieure, Paris, France
  DANAILA Ionut, Laboratoire de Mathématiques Raphaël Salem, Université de Rouen, France
  DUBRULLE Bérengère, Systèmes Physiques Hors-équilibre, hYdrodynamique, éNergie et compleXité, CEA, Paris
  HÄNNINEN Risto, O.V. Lounasmaa Laboratory, Aalto University, Finland
  KERR Bob, School of Engineering, Dept of Mathematics and Centre for Scientific Computing, University of Warwick, UK
  KRSTULOVIC Giorgo, Laboratoire Lagrange, Observatoire de la Côte d'Azur, Nice, France
  LAURIE Jason, Laboratoire de Physique, Ecole normale supérieure de Lyon, France
  PROMENT Davide, Dipartimento di Fisica Generale, Università degli Studi di Torino, Italy
  SERGEEV Yuri, Newcastle University, UK
  SKRBEK Ladislav, Charles University Prague, Czech republic
  SALMAN Hayder, University of East Anglia, UK 

3 Inscription Inscription is free but mandatory (and limited to 20 attendants); Please register here(external link). Lunches will be provided on Tuesday and Wednesday for registered attendants. 4 Participants

Family name First name Institution Calugaru Cerasela ENSL Salort Julien ENS Lyon UMR5672 Bos Wouter LMFA - CNRS - Ecole Centrale de Lyon Gibert Mathieu Institut Néel CNRS Rousset Bernard CEA Grenoble SY Fatimata CEA Grenoble Touil Hatem Physics Lab. – ENS de Lyon – UMR CNRS 5672 Cambon Claude LMFA, Ecole Centrale de Lyon Naso Aurore LMFA - CNRS & Ecole Centrale de Lyon SHAO Liang LMFA venaille antoine ens-lyon Aumaître Sébastien CEA-Saclay