Effects of Collisional Zonal Flow Damping on Turbulent Transport

Technical Report · Fri Oct 01 00:00:00 EDT 1999

DOI:https://doi.org/10.2172/13839· OSTI ID:13839

Diamond, P H ^[1]; Hahm, T S; Tang, W M; Lee, W W; Lin, Z

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1. Princeton Plasma Physics Laboratory

Results from 3D global gyrokinetic particle simulations of ion temperature gradient driven microturbulence in a toroidal plasma show that the ion thermal transport level in the interior region exhibits significant dependence on the ion-ion collision frequency even in regimes where the instabilities are collisionless. This is identified as arising from the Coulomb collisional damping of turbulence-generated zonal flows.

• Research Organization: Princeton Plasma Physics Lab., NJ (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 13839
• Report Number(s): PPPL-3362; AC02-CHO-3073
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DAMPING
FREQUENCY DEPENDENCE
ION TEMPERATURE
ION-ION COLLISIONS
PLASMA INSTABILITY
PLASMA WAVES
THREE-DIMENSIONAL CALCULATIONS
TURBULENCE