Poloidal rotation and its relation to the potential vorticity flux

McDevitt, C. J.; Diamond, P. H.; Gürcan, Ö. D.; Hahm, T. S.
November 2010
Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p112509
Academic Journal
A kinetic generalization of a Taylor identity appropriate to a strongly magnetized plasma is derived. This relation provides an explicit link between the radial mixing of a four-dimensional (4D) gyrocenter fluid and the poloidal Reynolds stress. This kinetic analog of a Taylor identity is subsequently utilized to link the turbulent transport of poloidal momentum to the mixing of potential vorticity. A quasilinear calculation of the flux of potential vorticity is carried out, yielding diffusive, turbulent equipartition, and thermoelectric convective components. Self-consistency is enforced via the quasineutrality relation, revealing that for the case of a stationary small amplitude wave population, deviations from neoclassical predictions of poloidal rotation can be closely linked to the growth/damping profiles of the underlying drift wave microturbulence.


Related Articles

  • Blob-induced toroidal momentum transport in simple magnetized plasmas. Labit, B.; Theiler, C.; Fasoli, A.; Furno, I.; Ricci, P. // Physics of Plasmas;Mar2011, Vol. 18 Issue 3, p032308 

    The link between toroidal flows and density blobs is experimentally demonstrated in TORPEX simple magnetized plasmas: momentum is transferred from an ideal-interchange mode to density blobs. The phase shift between the toroidal flow and the density perturbations observed in the interchange mode...

  • The plasma drag and dust motion inside the magnetized sheath. Pandey, B. P.; Vladimirov, S. V.; Samarian, A. // Physics of Plasmas;May2011, Vol. 18 Issue 5, p053703 

    The motion of micron size dust inside the sheath in the presence of an oblique magnetic field is investigated by self-consistently calculating the charge and various forces acting on the dust. It is shown that the dust trajectory inside the sheath, which is like an Archimedean spiral swinging...

  • On continuous transitions between discontinuous MHD solutions in the magnetic reconnection problem. Ledentsov, L.; Somov, B. // Astronomy Letters;Nov2012, Vol. 38 Issue 11, p744 

    The possibility that the type of magnetohydrodynamic (MHD) discontinuity changes as the plasma flow conditions gradually change is investigated in a general form. The conservation laws in MHD admit such transitions if there exist the so-called transition solutions that simultaneously satisfy two...

  • Self consistent nonlinear transverse quantum dynamics of a cold relativistic electron beam in a magnetized plasma. Fedele, R.; Tanjia, F.; De Nicola, S.; Jovanovic, D.; Shukla, P. K. // AIP Conference Proceedings;2/9/2012, Vol. 1421 Issue 1, p212 

    A relativistic electron/positron beam travelling in a cold plasma in the overdense regime n0>nb is the driver of large amplitude plasma oscillations that are generated by the Plasma Wake Field excitation. The beam experiences the 3D effects of the wake field that it has produced by itself (self...

  • Drift wave vortices and anomalous transport. Horton, W. // Physics of Fluids B: Plasma Physics;Mar89, Vol. 1 Issue 3, p524 

    Theory and computer simulations are used to describe the inelastic vortex–vortex and vortex–wave interactions that lead to the quasicoherent transport of plasma across a constant magnetic field in 2-D systems. Monopole and dipole drift wave vortices with radii r0 large compared...

  • Numerical model of an ac plasma display panel cell in neon-xenon mixtures. Meunier, J.; Belenguer, Ph.; Boeuf, J. P. // Journal of Applied Physics;7/15/1995, Vol. 78 Issue 2, p731 

    Provides information on a study which presented a self-consistent one-dimensional model of the discharge initiated in an asynchronous circuit plasma display panel cell. Basis for the model; Description of plasma display panels (PDP); Companies that developed prototype color PDP.

  • A new method of radial potential profile measurement utilizing magnetic field gradient near a... Ishii, K.; Katsuki, Y.; Abe, A.; Takahashi, T.; Goto, T.; Kikuno, N.; Katanuma, I.; Itakura, A.; Yatsu, K.; Tamano, T. // Review of Scientific Instruments;May96, Vol. 67 Issue 5, p1822 

    Describes a method of potential measurement developed to determine the plasma potential profile in the neighborhood of the inner mirror throat of the tandem mirror GAMMA 10. Electron loss region; Inner mirror throat beam probe system; Space potential measurement; Plasma density measurement.

  • Grain in weakly ionized plasma in the presence of an external magnetic field: Charging by plasma currents and effective potential. Momot, A. I. // Physics of Plasmas;Jul2013, Vol. 20 Issue 7, p073703 

    The problem of grain screening is solved numerically for the case of weakly ionized plasma in the presence of an external magnetic field. The plasma dynamics is described within the drift-diffusion approximation under the assumption that the grain absorbs all encountered electrons and ions. We...

  • Magnetic piston model for higher ion charge and different electron and ion plasma temperatures. Bogatu, I. N. // Physics of Plasmas;May2013, Vol. 20 Issue 5, p052105 

    A new formula for the magnetic piston model, which explicitly describes how the momentum imparted to the ions by the magnetic pressure depends not only on the ion mass but also on the ion charge, as well as, on the plasma electron and ion temperatures, is derived following Rosenbluth's classical...


Read the Article


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

Try another library?
Sign out of this library

Other Topics