Global gyrokinetic simulations of MHD-modes in tokamak plasmas

POSTER

Abstract

Linear stability properties of global MHD modes, e.g., TAE and EPM, are determined by competition of dissipative kinetic effects and drive mechanisms, with energetic particles playing a significant role. The simulations of global MHD modes are performed using gyrokinetic toroidal particle-in-cell code (GTC) where ions and energetic particles are treated kinetically while hybrid scheme is implemented for electrons [Z. Lin, L. Chen, Phys. Plasmas 8, 1447 (2001)]. Linear dispersion from global kinetic simulations will be compared to theory and MHD simulations. The work was supported by DOE grants DE-FC02-04ER54796 and DE- FG02-03ER54724.

Authors

  • Igor Holod

  • Zhihong Lin

    University of California, Irvine

  • Yasutaro Nishimura

  • Liu Chen

    University of California, Irvine, UC-Irvine, University of California at Irvine, Department of Physics and Astronomy, University of California, Irvine, Department of Physics and Astronomy, University of California, Irvine CA 92717-4575