On the stirring properties of the thermally-driven rotating annulus

PHYSICA D-NONLINEAR PHENOMENA 268 (2014) 50-58

Authors:

RJ Keane, PL Read, GP King

CoRoT 223992193: A new, low-mass, pre-main sequence eclipsing binary with evidence of a circumbinary disk

(2013)

Authors:

Edward Gillen, Suzanne Aigrain, Amy McQuillan, Jerome Bouvier, Simon Hodgkin, Silvia HP Alencar, Caroline Terquem, John Southworth, Neale P Gibson, Ann Marie Cody, Monika Lendl, Maria Morales-Calderón, Fabio Favata, John Stauffer, Giuseppina Micela

Overview of physics results from MAST towards ITER/DEMO and the MAST Upgrade

Nuclear Fusion IOP Publishing 53:10 (2013) 104008

Authors:

H Meyer, IG Abel, RJ Akers, A Allan, SY Allan, LC Appel, O Asunta, M Barnes, NC Barratt, N Ben Ayed, JW Bradley, J Canik, P Cahyna, M Cecconello, CD Challis, IT Chapman, D Ciric, G Colyer, NJ Conway, M Cox, BJ Crowley, SC Cowley, G Cunningham, A Danilov, A Darke, MFM De Bock, G De Temmerman, RO Dendy, P Denner, D Dickinson, AY Dnestrovsky, Y Dnestrovsky, MD Driscoll, B Dudson, D Dunai, M Dunstan, P Dura, S Elmore, AR Field, G Fishpool, S Freethy, W Fundamenski, L Garzotti, YC Ghim, KJ Gibson, MP Gryaznevich, J Harrison, E Havlíčková, NC Hawkes, WW Heidbrink, TC Hender, E Highcock, D Higgins, P Hill, B Hnat, MJ Hole, J Horáček, DF Howell, K Imada, O Jones, E Kaveeva, D Keeling, A Kirk, M Kočan, RJ Lake, M Lehnen, HJ Leggate, Y Liang, MK Lilley, SW Lisgo, YQ Liu, B Lloyd, GP Maddison, J Mailloux, R Martin, GJ McArdle, KG McClements, B McMillan, C Michael, F Militello, P Molchanov, S Mordijck, T Morgan, AW Morris, DG Muir, E Nardon, V Naulin, G Naylor, AH Nielsen, MR O'Brien, T O'Gorman, S Pamela, FI Parra, A Patel, SD Pinches, MN Price, CM Roach, JR Robinson, M Romanelli, V Rozhansky, S Saarelma, S Sangaroon, A Saveliev, R Scannell, J Seidl, SE Sharapov, AA Schekochihin, V Shevchenko, S Shibaev, D Stork, J Storrs, A Sykes, GJ Tallents, P Tamain, D Taylor, D Temple, N Thomas-Davies, A Thornton, MR Turnyanskiy, M Valovič, RGL Vann, E Verwichte, P Voskoboynikov, G Voss, SEV Warder, HR Wilson, I Wodniak, S Zoletnik, R Zagôrski

Plumbing the depths of Uranus and Neptune

Nature Springer Nature 497:7449 (2013) 323-324

Experimental signatures of critically balanced turbulence in MAST

Physical Review Letters 110:14 (2013)

Authors:

YC Ghim, A Schekochihin, AR Field, IG Abel, M Barnes, G Colyer, SC Cowley, FI Parra, D Dunai, S Zoletnik

Abstract:

Beam emission spectroscopy (BES) measurements of ion-scale density fluctuations in the MAST tokamak are used to show that the turbulence correlation time, the drift time associated with ion temperature or density gradients, the particle (ion) streaming time along the magnetic field, and the magnetic drift time are consistently comparable, suggesting a "critically balanced" turbulence determined by the local equilibrium. The resulting scalings of the poloidal and radial correlation lengths are derived and tested. The nonlinear time inferred from the density fluctuations is longer than the other times; its ratio to the correlation time scales as ν*i-0. 8±0.1, where ν*i=ion  ⠀Šcollision   rate/streaming   rate. This is consistent with turbulent decorrelation being controlled by a zonal component, invisible to the BES, with an amplitude exceeding those of the drift waves by ∼ν*i-0.8. Published by the American Physical Society.