Sherwood 2015

Abstract Details

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Gyrokinetic simulation of the collisional micro-tearing mode instability

Author: Edward A. Startsev
Requested Type: Poster Only
Submitted: 2015-01-19 13:51:17

Co-authors: W.W.Lee, W.X. Wang

Contact Info:
Princeton Plasma Physics Laboratory
P.O. Box 451
Princeton, New Jersey   08543
United States

Abstract Text:
An application of recently developed perturbative particle simulation scheme for finite-beta plasmas in the presence of background inhomogeneities is presented. Originally [1], using this scheme, we were able to simulate shear-Alfven waves, finite-beta modified drift waves and ion temperature gradient modes using a simple gyrokinetic particle code based on realistic fusion plasma parameters. Recently, we have successfully used the scheme for simulation of linear tearing and drift-tearing modes, in both collisionless semi collisional regimes in slab geometry with sheared magnetic field. Here, we present the simulation of linear collisional micro-tearing mode driven by electron temperature gradient [2] using the 2-D sheared-slab particle-in-cell code with drift kinetic electrons and gyrokinetic ions and compare it with other perturbative particle simulation schemes. We will also present preliminary results of the linear collisional micro-tearing mode simulations in high-aspect ratio cylindrical cross-section tokamak using the modified turbulence code GTS.

[1] E. A. Startsev and W. W. Lee, Phys. Plasmas 21, 022505 (2014).
[2] J. F. Drake and Y. C. Lee, Phys. Fluids 20, 1341 (1977).


March 16-18, 2015
The Courant Institute, New York University