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

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

Organizing committee:

• 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)

• 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 Maths 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