Effect of resonant magnetic perturbations on microturbulence in DIII-D pedestal

Holod, I.; Lin, Z.; Taimourzadeh, S.; Nazikian, R.; Spong, D.; Wingen, A.

doi:10.1088/0029-5515/57/1/016005

Title: Effect of resonant magnetic perturbations on microturbulence in DIII-D pedestal

Journal Article · 03 October 2016 · Nuclear Fusion

DOI: https://doi.org/10.1088/0029-5515/57/1/016005 · OSTI ID:1329144

Holod, I. ^[1]; Lin, Z. ^[2]; Taimourzadeh, S. ^[2]; Nazikian, R. ^[3]; Spong, D. ^[4]; Wingen, A. ^[4]

Univ. of California, Irvine, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of California, Irvine, CA (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Vacuum resonant magnetic perturbations (RMP) applied to otherwise axisymmetric tokamak plasmas produce in general a combination of non-resonant effects that preserve closed flux surfaces (kink response) and resonant effects that introduce magnetic islands and/or stochasticity (tearing response). The effect of the plasma kink response on the linear stability and nonlinear transport of edge turbulence is studied using the gyrokinetic toroidal code GTC for a DIII-D plasma with applied n = 2 vacuum RMP. GTC simulations use the 3D equilibrium of DIII-D discharge 158103 (Nazikian et al 2015 Phys. Rev. Lett. 114 105002), which is provided by nonlinear ideal MHD VMEC equilibrium solver in order to include the effect of the plasma kink response to the external field but to exclude island formation at rational surfaces. Analysis using the GTC simulation results reveal no increase of growth rates for the electrostatic drift wave instability and for the electromagnetic kinetic-ballooning mode in the presence of the plasma kink response to the RMP. Moreover, nonlinear electrostatic simulations show that the effect of the 3D equilibrium on zonal flow damping is very weak and found to be insufficient to modify turbulent transport in the electrostatic turbulence.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1329144

Journal Information:: Nuclear Fusion, Journal Name: Nuclear Fusion Journal Issue: 1 Vol. 57; ISSN 0029-5515

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

References (20)

Edge stability and transport control with resonant magnetic perturbations in collisionless tokamak plasmas Evans, Todd E.; Moyer, Richard A.; Burrell, Keith H. Nature Physics, Vol. 2, Issue 6 https://doi.org/10.1038/nphys312	journal	May 2006
Electromagnetic formulation of global gyrokinetic particle simulation in toroidal geometry Holod, I.; Zhang, W. L.; Xiao, Y. Physics of Plasmas, Vol. 16, Issue 12 https://doi.org/10.1063/1.3273070	journal	December 2009
Gyrokinetic equations for strong-gradient regions Dimits, Andris M. Physics of Plasmas, Vol. 19, Issue 2 https://doi.org/10.1063/1.3683000	journal	February 2012
Modelling of three dimensional equilibrium and stability of MAST plasmas with magnetic perturbations using VMEC and COBRA Ham, C. J.; Chapman, I. T.; Kirk, A. Physics of Plasmas, Vol. 21, Issue 10 https://doi.org/10.1063/1.4895602	journal	October 2014
Controlling tokamak geometry with three-dimensional magnetic perturbations Bird, T. M.; Hegna, C. C. Physics of Plasmas, Vol. 21, Issue 10 https://doi.org/10.1063/1.4898064	journal	October 2014
Gyrokinetic particle simulation of microturbulence for general magnetic geometry and experimental profiles Xiao, Yong; Holod, Ihor; Wang, Zhixuan Physics of Plasmas, Vol. 22, Issue 2 https://doi.org/10.1063/1.4908275	journal	February 2015
Theory and simulation of quasilinear transport from external magnetic field perturbations in a DIII-D plasma Waltz, R. E.; Ferraro, N. M. Physics of Plasmas, Vol. 22, Issue 4 https://doi.org/10.1063/1.4917473	journal	April 2015
Steepest-descent moment method for three-dimensional magnetohydrodynamic equilibria Hirshman, S. P. Physics of Fluids, Vol. 26, Issue 12 https://doi.org/10.1063/1.864116	journal	January 1983
Shearing rate of time-dependent E×B flow Hahm, T. S.; Beer, M. A.; Lin, Z. Physics of Plasmas, Vol. 6, Issue 3 https://doi.org/10.1063/1.873331	journal	March 1999
Modelling of the edge plasma of MAST in the presence of resonant magnetic perturbations Rozhansky, V.; Molchanov, P.; Kaveeva, E. Nuclear Fusion, Vol. 51, Issue 8 https://doi.org/10.1088/0029-5515/51/8/083009	journal	July 2011
Increase of turbulence and transport with resonant magnetic perturbations in ELM-suppressed plasmas on DIII-D McKee, G. R.; Yan, Z.; Holland, C. Nuclear Fusion, Vol. 53, Issue 11 https://doi.org/10.1088/0029-5515/53/11/113011	journal	September 2013
Magnetic-flutter-induced pedestal plasma transport Callen, J. D.; Hegna, C. C.; Cole, A. J. Nuclear Fusion, Vol. 53, Issue 11 https://doi.org/10.1088/0029-5515/53/11/113015	journal	September 2013
Impact of resonant magnetic perturbations on zonal modes, drift-wave turbulence and the L–H transition threshold Leconte, M.; Diamond, P. H.; Xu, Y. Nuclear Fusion, Vol. 54, Issue 1 https://doi.org/10.1088/0029-5515/54/1/013004	journal	November 2013
Microturbulence in DIII-D tokamak pedestal. II. Electromagnetic instabilities Holod, I.; Fulton, D.; Lin, Z. Nuclear Fusion, Vol. 55, Issue 9 https://doi.org/10.1088/0029-5515/55/9/093020	journal	August 2015
Quiescent H-mode plasmas in the DIII-D tokamak Burrell, K. H.; Austin, M. E.; Brennan, D. P. Plasma Physics and Controlled Fusion, Vol. 44, Issue 5A https://doi.org/10.1088/0741-3335/44/5A/325	journal	April 2002
Global gyrokinetic particle simulations with kinetic electrons Lin, Z.; Nishimura, Y.; Xiao, Y. Plasma Physics and Controlled Fusion, Vol. 49, Issue 12B https://doi.org/10.1088/0741-3335/49/12B/S15	journal	November 2007
Connection between plasma response and resonant magnetic perturbation (RMP) edge localized mode (ELM) suppression in DIII-D Wingen, A.; Ferraro, N. M.; Shafer, M. W. Plasma Physics and Controlled Fusion, Vol. 57, Issue 10 https://doi.org/10.1088/0741-3335/57/10/104006	journal	September 2015
Observation of a Multimode Plasma Response and its Relationship to Density Pumpout and Edge-Localized Mode Suppression Paz-Soldan, C.; Nazikian, R.; Haskey, S. R. Physical Review Letters, Vol. 114, Issue 10 https://doi.org/10.1103/PhysRevLett.114.105001	journal	March 2015
Pedestal Bifurcation and Resonant Field Penetration at the Threshold of Edge-Localized Mode Suppression in the DIII-D Tokamak Nazikian, R.; Paz-Soldan, C.; Callen, J. D. Physical Review Letters, Vol. 114, Issue 10 https://doi.org/10.1103/PhysRevLett.114.105002	journal	March 2015
Turbulent Transport Reduction by Zonal Flows: Massively Parallel Simulations Lin, Z. Science, Vol. 281, Issue 5384 https://doi.org/10.1126/science.281.5384.1835	journal	September 1998

Cited By (9)

Helical variation of density profiles and fluctuations in the tokamak pedestal with applied 3D fields and implications for confinement Wilcox, R. S.; Rhodes, T. L.; Shafer, M. W. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5024378	journal	May 2018
Enhancement of zonal flow damping due to resonant magnetic perturbations in the background of an equilibrium E × B sheared flow Leconte, M.; Singh, R. Physics of Plasmas, Vol. 25, Issue 8 https://doi.org/10.1063/1.5043243	journal	August 2018
Kinetic particle simulations in a global toroidal geometry De, S.; Singh, T.; Kuley, A. Physics of Plasmas, Vol. 26, Issue 8 https://doi.org/10.1063/1.5108684	journal	August 2019
The density dependence of edge-localized-mode suppression and pump-out by resonant magnetic perturbations in the DIII-D tokamak Hu, Q. M.; Nazikian, R.; Grierson, B. A. Physics of Plasmas, Vol. 26, Issue 12 https://doi.org/10.1063/1.5134767	journal	December 2019
Dynamics of ideal modes and subsequent ELM crashes in 3D tokamak geometry from external magnetic perturbations Willensdorfer, M.; Cote, T. B.; Griener, M. Plasma Physics and Controlled Fusion, Vol. 61, Issue 1 https://doi.org/10.1088/1361-6587/aadc39	journal	November 2018
Grassy-ELM regime with edge resonant magnetic perturbations in fully noninductive plasmas in the DIII-D tokamak Nazikian, R.; Petty, C. C.; Bortolon, A. Nuclear Fusion, Vol. 58, Issue 10 https://doi.org/10.1088/1741-4326/aad20d	journal	July 2018
The effect of plasma shape and neutral beam mix on the rotation threshold for RMP-ELM suppression Paz-Soldan, C.; Nazikian, R.; Cui, L. Nuclear Fusion, Vol. 59, Issue 5 https://doi.org/10.1088/1741-4326/ab04c0	journal	March 2019
Nonlinear modeling of the effect of n = 2 resonant magnetic field perturbation on peeling-ballooning modes in KSTAR Kim, S. K.; Pamela, S.; Kwon, O. Nuclear Fusion, Vol. 60, Issue 2 https://doi.org/10.1088/1741-4326/ab5cf0	journal	January 2020
Field-Line Localized Destabilization of Ballooning Modes in Three-Dimensional Tokamaks Willensdorfer, M.; Cote, T. B.; Hegna, C. C. Physical Review Letters, Vol. 119, Issue 8 https://doi.org/10.1103/physrevlett.119.085002	journal	August 2017

Similar Records

Effects of RMP-induced changes of radial electric fields on microturbulence in DIII-D pedestal top

Journal Article · 2019 · Nuclear Fusion · OSTI ID:1492930

Taimourzadeh, Sam; Shi, Lei; Lin, Zhihong; +3 more

Microturbulence in DIII-D tokamak pedestal. IV. Electrostatic turbulent transport

Journal Article · 2016 · Physics of Plasmas · OSTI ID:1465367

Liao, X.; Lin, Z.; Holod, I.; +2 more

Gyrokinetic understanding of the edge pedestal transport driven by resonant magnetic perturbations in a realistic divertor geometry

Journal Article · 2020 · Physics of Plasmas · OSTI ID:1642915

Hager, R.; Chang, C. S.; Ferraro, N. M.; +1 more

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Title: Effect of resonant magnetic perturbations on microturbulence in DIII-D pedestal

Citation Formats

References (20)

Cited By (9)

Similar Records

Related Subjects