# Structures and Waves in Anisotropic Turbulence Programme

### Monday 3 - Friday 7 November 2008

## PROGRAMME

**Monday 3 November 2008
MIR@W DAY**

- 09:00-12:00
**Registration**in Room B1.37 in the Mathematics Institute - 12:00-13:00 Lunch in the Mathematics Institute Common Room
- 13:00-13:15 Opening remarks
- 13:15-14:00
**F. Sahraoui**(CETP/IPSL)*Phase coherence*structures intermittency in magnetized space plasmas - 14:00-14:45
**D.Dritschel**St Andrews)*Inviscid shallow water turbulence* - 14:45-15:15 Tea in the Mathematics Institute Common Room
- 15:15-16:00
**A. Peeters**Warwick)*Momentum transport in fusion devices due to small scale turbulence* - 16:00-16:45
**B. Ecke**LANL)*Turbulent mixing in stably stratified flows: Applications to oceanic overflows and global climate change* - 16:45-17:45 Four short talks

**H. Latter**(ENS Paris)*Coherent structures in accretion-disk turbulence***M. Bustamante**(Warwick) New results on nonlinear resonance dynamics

- TBA

**Tuesday 4 November 2008**

- 09:00-09:40
**M. McIntyre**(Cambridge)*There's no such thing as turbulence without waves: reflections on Jupiter and the several different Rhines scales* - 09:40-10:20
**C. Staquet**INPG)*Numerical study of a two-dimensional internal gravity wave attractor* - 10:20-10:50 Coffee in the Mathematics Institute Common Room
- 10:50-11:30
**P. Bartello**(McGill)*Wave saturation in stratified turbulence* - 11:30-12:10
**S. Fauve**(ENS Paris)*A mechanism for reversals of large scale fields driven by turbulence* - 12:10-13:40 Lunch / Poster session in the Mathematics Institute Common Room
- 13:40-14:20
**J.M. Chomaz**CNRS Palaiseau)*Nonlinear evolution of the zigzag instability instratified fluids: a shortcut on the route to dissipation* - 14:20-15:00
**S. Kida**(Kyoto)*Flows in a precessing sphere* - 15:00-15:30 Tea in the Mathematics Institute Common Room
- 15:30-16:10
**S. Sukoriansky**(Ben Gurion)*The QNSE theory of anisotropic turbulence and waves in flows with stable stratification* - 16:10-16:50
**P.A. Davidson**Cambridge)*Structure formation in rotating*stratified and MHD turbulence - 16:50-17:30
**F. Bouchet**(CNRS Nice)*The stochastic Orr mechanism and the fluctuations of self organised 2D turbulent flows* - 17:30-18:10
**J. Shipton**(Oxford)*Spherical shallow water turbulence: cyclone-anticyclone asymmetry, potential vorticity homogenisation and jet formation*

Wednesday 5 November 2008

- 09:00-09:40
**S. Cowley**(UKAEA)*Anisotropic structure in Fusion Turbulence* - 09:40-10:20
**S. Galtier**Paris-sud)*Structures and waves in anisotropic MHD turbulence*

- 10:20-10:50 Coffee in the Mathematics Institute Common Room
- 10:50-11:30
**T. Heinemann**(Cambridge)*The excitation of inertial-acoustic waves in turbulent accretion disks* - 11:30-12:10
**G. Lesur**(Cambridge)*Non linear dynamos in accretion disc turbulence* - 12:10-13:40 Lunch
- 13:40-14:20
**E. Lee**(UCAR)*Paradigmatic flows for small-scale magnetohydrodynamics based on symmetric design:properties of ideal and dissipative simulations and the collision of current sheets* - 14:20-15:00
**K. Ngan**(Met Office)*Predictability of rotating stratified turbulence* - 15:00-15:30 Tea in the Mathematics Institute Common Room
- 15:30-16:10
**C. Connaughton**(Warwick)*Modulational instability of Rossby/drift waves and generation of zonal jets* - 16:10-16:50
**O. Alexandrova**(Cologne)*Anisotropy and dissipation in space plasma turbulence* - 16:50-17:30
**A. Schekochihin**Imperial)*Weak Alfen-wave turbulence revisited* - 17:30-18:10 Discussion
- 19:00 Dinner

**Thursday 6 November 2008**

- 09:00-09:40
**B. Galperin****USF**)*Nonlinear waves and coherent vortices in beta-plane turbulence* - 09:40-10:20
**C.V.Tran**(St Andrews)*Scalar transport and diffusion in smooth flows* - 10:20-10:50 Coffee in the Mathematics Institute Common Room
- 10:50-11:30
**P. Berloff**WHOI)*Formation of multiple zonal jets in the ocean* - 11:30-12:10
**J.B. Flor**INPG)*Frontal instabilities in a differentially rotating stratified fluid* - 12:10-13:40 Lunch / Posters in the Mathematics Institute Common Room
- 13:40-14:20
**A. Thompson**(Cambridge)*Scaling baroclinic eddy fluxes: vortices and jets* - 14:20-15:00
**F. Rincon**Toulouse)*Scale-by-scale budgets*anisotropy and inhomogeneity in soft convective turbulence - 15:00-15:30 Tea in the Mathematics Institute Common Room
- 15:30-16:10
**V. Zeitlin**(ENS Lyon)*Free-wave-trapped wave resonances in oceanic waveguides* - 16:10-16:50
**J. Hunt**UCL)*Very inhomogeneous/anisotropic turbulence near interfaces-the key to most turbulence structures* - 16:50-17:30
**R. Ker**Warwick)*Cascades and structure functions in the atmospheric boundary layer* - 17:30-18:10
**F. Moisy**(UPS)*Structure functions, intermittency and dimensionalityof decaying rotating turbulence*

**Friday 7 November 2008**

- 09:00-09:40
**A. Pouquet**NCAR)*Waves and eddies in rotating flows at moderate Rossby and large Reynolds numbers and the possibility of new scaling laws in the presence of helicity* - 09:40-10:20
**W. Bos**EC Lyon)*Zonal flows in two-dimensional MHD turbulence* - 10:20-10:50 Coffee in the Mathematics Institute Common Room
- 10:50-11:30
**C. Cambon**(Lyon)*Rotating and/or MHD turbulence with imposed magnetic field: Recent progresses using axisymmetric (strongly anisotropic) statistical triadic closure*incorporatinG RDT and wave-turbulence theory - 11:30-12:10
**TBA**TBA - 12:10-13:40 Lunch
- 13:40-14:20
**T. Yousef**(Cambridge)*Alfen wave turbulence - some new numerical results* - 14:20-15:00 Discussion
- 15:00-16:00 Tea in the Mathematics Institute Common Room
- 16:00-17:00 Colloquium
**K. Moffatt**(Cambridge)*Magnetostrophic turbulence driven by buoyancy* - 17:30 Cheese and wine in the Mathematics Institute Common Room

## Organisers

Peter Bartello (McGill)

Colm Connaughton (Warwick)

Peter Davidson (Cambridge)

Sergey Nazarenko (Warwick)

Brenda Quinn (Warwick)

Alexander Schekochihin (Imperial)

## Sponsors

Isaac Newton Institute