Intrinsic rotation driven by the electrostatic turbulence in up-down asymmetric toroidal plasmas

Camenen, Y.; Peeters, A. G.; Angioni, C.; Casson, F. J.; Hornsby, W. A.; Snodin, A. P.; Strintzi, D.
June 2009
Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062501
Academic Journal
The transport of parallel momentum by small scale fluctuations is intrinsically linked to symmetry breaking in the direction of the magnetic field. In tokamaks, an up-down asymmetry in the equilibrium proves to be an efficient parallel symmetry breaking mechanism leading to the generation of a net radial flux of parallel momentum by the electrostatic turbulence [Y. Camenen et al., Phys. Rev. Lett. 102, 125001 (2009)]. This flux is neither proportional to the toroidal rotation nor to its gradient and arises from an incomplete cancellation of the local contributions to the parallel momentum flux under the flux surface average. The flux of parallel momentum then depends on the asymmetry of the curvature drift and on the extension of the fluctuations around the low field side midplane. In this paper, the mechanisms underlying the generation of the flux of parallel momentum are highlighted and the main dependences on plasma parameters investigated using linear gyrokinetic simulations.


Related Articles

  • Ion thermal double layers in a pair-ion warm magnetized plasma containing charged dust impurities. El-Labany, S. K.; El-Bedwehy, N. A.; El-Shamy, E. F. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p063706 

    In this paper the formation and the dynamics of ion thermal double layers (ITDLs) in a magnetized plasma, composed of positive and negative ions as well as a fraction of stationary charged (positive or negative) dust impurities have been studied. Using plasma hydrodynamics and Poisson equations...

  • Turbulent Ion Heating in a Plasma with Two Ion Species. Kuzora, I.V.; Silin, V.P.; Uryupin, S.A. // Plasma Physics Reports;Apr2004, Vol. 30 Issue 4, p307 

    A description of ion heating by ion-acoustic turbulence in a plasma containing two ion species of different charge-to-mass ratio is presented. It is shown that, when collisions between ions of different species are ignored, only one of the ion species is heated substantially while the...

  • Cross-machine comparison of resonant field amplification and resistive wall mode stabilization by plasma rotation. Reimerdes, H.; Hender, T. C.; Sabbagh, S. A.; Bialek, J. M.; Chu, M. S.; Garofalo, A. M.; Gryaznevich, M. P.; Howell, D. F.; Jackson, G. L.; La Haye, R. J.; Liu, Y. Q.; Menard, J. E.; Navratil, G. A.; Okabayashi, M.; Pinches, S. D.; Sontag, A. C.; Strait, E. J.; Zhu, W.; Bigi, M.; de Baar, M. // Physics of Plasmas;May2006, Vol. 13 Issue 5, p055704 

    Dedicated experiments in the DIII-D tokamak [J. L. Luxon, Nucl. Fusion, 42, 614 (2002)], the Joint European Torus (JET) [P. H. Rebut, R. J. Bickerton, and B. E. Keen, Nucl. Fusion 25, 1011 (1985)], and the National Spherical Torus Experiment (NSTX) [M. Ono, S. M. Kaye, Y.-K. M. Peng et al.,...

  • Three-dimensional evolution of magnetic and velocity shear driven instabilities in a compressible magnetized jet. Bettarini, Lapo; Landi, Simone; Velli, Marco; Londrillo, Pasquale // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062302 

    The problem of three-dimensional combined magnetic and velocity shear driven instabilities of a compressible magnetized jet modeled as a plane neutral/current double vortex sheet in the framework of the resistive magnetohydrodynamics is addressed. The resulting dynamics given by the...

  • Quantum effects on the Rayleigh–Taylor instability in a horizontal inhomogeneous rotating plasma. Hoshoudy, G. A. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p064501 

    The Rayleigh–Taylor instability is studied analytically in inhomogeneous plasma rotating uniformly in an external transverse magnetic field. The influence of the quantum mechanism is considered. For a stratified layer the linear growth rate is obtained. Some special cases that isolate the...

  • Dust grain oscillations in two-dimensional hexagonal dusty plasma crystals in the presence of a magnetic field. Farokhi, B.; Shahmansouri, M.; Shukla, P. K. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p063703 

    The influence of a constant magnetic field on the propagation of dust-lattice waves in a two-dimensional hexagonal strongly coupled dusty plasma crystal is considered. The expression for the wave dispersion relation clearly shows that high- and low-frequency dust lattice vibrations exist as a...

  • Transport scaling in interchange-driven toroidal plasmas. Ricci, Paolo; Rogers, B. N. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062303 

    Two-dimensional fluid simulations of a simple magnetized torus are presented, in which the vertical and toroidal components of the magnetic field create helicoidal field lines that terminate on the upper and lower walls of the plasma chamber. The simulations self-consistently evolve the full...

  • Three-dimensional electron magnetohydrodynamic reconnection. I. Fields, currents, and flows. Stenzel, R. L.; Griskey, M. C.; Urrutia, J. M.; Strohmaier, K. D. // Physics of Plasmas;Jul2003, Vol. 10 Issue 7, p2780 

    In a large laboratory plasma, reconnection of three-dimensional (3-D) magnetic fields is studied in the parameter regime of electron magnetohydrodynamics. A reversed magnetic field topology with two 3-D null points and a two-dimensional (2-D) null line is established, and its free relaxation is...

  • Radial transport of fluctuation energy in a two-field model of drift-wave turbulence. Gürcan, Ö. D.; Diamond, P. H.; Hahm, T. S. // Physics of Plasmas;May2006, Vol. 13 Issue 5, p053503 

    A theory of spatial propagation of turbulence, referred to as turbulence spreading, is developed for the two-field model of drift wave turbulence. Markovian closure expressions for the flux of kinetic and internal fluctuation energies are systematically derived. Simplified closure expressions...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics