Linear analyses of peeling-ballooning modes in high beta pedestal plasmas

Sun, C. K.; Xu, X. Q.; Ma, C. H.; Li, B.

doi:10.1063/1.5028261

Title: Linear analyses of peeling-ballooning modes in high beta pedestal plasmas

Journal Article · 06 August 2018 · Physics of Plasmas

DOI: https://doi.org/10.1063/1.5028261 · OSTI ID:1543864

Sun, C. K. ^[1];

^[2]; Ma, C. H. ^[3]; Li, B. ^[4]

Peking Univ., Beijing (China)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Princeton Univ., Princeton, NJ (United States). Princeton Plasma Physics Lab
Beihang Univ., Beijing (China)

We present the linear simulations of edge plasma instabilities using the 3-field peeling-ballooning model and gyro-Landau-fluid model under the BOUT++ framework. A series of realistic equilibria of shifted circular geometry are generated by a global equilibrium solver CORSICA, where the Shafranov shift, elongation effects, and bootstrap current are included. The linear growth rate spectrum of the peeling-ballooning modes is shown in a wide range of pressure gradient and parallel current density in the pedestal region. The results show that the bootstrap current stabilizes high beta ballooning modes. Here, the simulations with different fractions of bootstrap current indicate a trend for the existence of the high beta peeling-ballooning mode stability region. Taking the kinetic effects into account, the linear simulations of kinetic peeling-ballooning mode using the gyro-Landau-fluid model show that this region can be accessed.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1543864

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 25; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (27)

H-mode pedestal characteristics in ITER shape discharges on DIII-D Osborne, T. H.; Burrell, K. H.; Groebner, R. J. Journal of Nuclear Materials, Vol. 266-269 https://doi.org/10.1016/S0022-3115(98)00814-9	journal	March 1999
BOUT++: A framework for parallel plasma fluid simulations Dudson, B. D.; Umansky, M. V.; Xu, X. Q. Computer Physics Communications, Vol. 180, Issue 9 https://doi.org/10.1016/j.cpc.2009.03.008	journal	September 2009
A Landau fluid model for electromagnetic plasma microturbulence Snyder, P. B.; Hammett, G. W. Physics of Plasmas, Vol. 8, Issue 7 https://doi.org/10.1063/1.1374238	journal	July 2001
Edge localized modes and the pedestal: A model based on coupled peeling–ballooning modes Snyder, P. B.; Wilson, H. R.; Ferron, J. R. Physics of Plasmas, Vol. 9, Issue 5 https://doi.org/10.1063/1.1449463	journal	May 2002
Numerical studies of edge localized instabilities in tokamaks Wilson, H. R.; Snyder, P. B.; Huysmans, G. T. A. Physics of Plasmas, Vol. 9, Issue 4 https://doi.org/10.1063/1.1459058	journal	April 2002
Erratum: “Neoclassical conductivity and bootstrap current formulas for general axisymmetric equilibria and arbitrary collisionality regime” [Phys. Plasmas 6 , 2834 (1999)] Sauter, O.; Angioni, C.; Lin-Liu, Y. R. Physics of Plasmas, Vol. 9, Issue 12 https://doi.org/10.1063/1.1517052	journal	December 2002
Stabilizing effects of edge current density on pedestal instabilities Zhu, P.; Hegna, C. C.; Sovinec, C. R. Physics of Plasmas, Vol. 19, Issue 3 https://doi.org/10.1063/1.3692089	journal	March 2012
Influence of equilibrium shear flow on peeling-ballooning instability and edge localized mode crash Xi, P. W.; Xu, X. Q.; Wang, X. G. Physics of Plasmas, Vol. 19, Issue 9 https://doi.org/10.1063/1.4751256	journal	September 2012
Linear calculations of edge current driven kink modes with BOUT++ code Li, G. Q.; Xu, X. Q.; Snyder, P. B. Physics of Plasmas, Vol. 21, Issue 10 https://doi.org/10.1063/1.4898673	journal	October 2014
Impact of inward turbulence spreading on energy loss of edge-localized modesa) Ma, C. H.; Xu, X. Q.; Xi, P. W. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4920963	journal	May 2015
Benchmark studies of the gyro-Landau-fluid code and gyro-kinetic codes on kinetic ballooning modes Tang, T. F.; Xu, X. Q.; Ma, C. H. Physics of Plasmas, Vol. 23, Issue 3 https://doi.org/10.1063/1.4944391	journal	March 2016
Stable equilibria for bootstrap-current-driven low aspect ratio tokamaks Miller, R. L.; Lin-Liu, Y. R.; Turnbull, A. D. Physics of Plasmas, Vol. 4, Issue 4 https://doi.org/10.1063/1.872193	journal	April 1997
Noncircular, finite aspect ratio, local equilibrium model Miller, R. L.; Chu, M. S.; Greene, J. M. Physics of Plasmas, Vol. 5, Issue 4 https://doi.org/10.1063/1.872666	journal	April 1998
Magnetohydrodynamic stability of tokamak edge plasmas Connor, J. W.; Hastie, R. J.; Wilson, H. R. Physics of Plasmas, Vol. 5, Issue 7 https://doi.org/10.1063/1.872956	journal	July 1998
Neoclassical conductivity and bootstrap current formulas for general axisymmetric equilibria and arbitrary collisionality regime Sauter, O.; Angioni, C.; Lin-Liu, Y. R. Physics of Plasmas, Vol. 6, Issue 7 https://doi.org/10.1063/1.873240	journal	July 1999
Access to second stability region for coupled peeling-ballooning modes in tokamaks Wilson, H. R.; Miller, R. L. Physics of Plasmas, Vol. 6, Issue 3 https://doi.org/10.1063/1.873326	journal	March 1999
Ideal-MHD stability of finite-beta plasmas Coppi, B.; Ferreira, A.; Mark, J. W. -K. Nuclear Fusion, Vol. 19, Issue 6 https://doi.org/10.1088/0029-5515/19/6/003	journal	June 1979
Predictive capability of MHD stability limits in high performance DIII-D discharges Turnbull, A. D.; Brennan, D. P.; Chu, M. S. Nuclear Fusion, Vol. 42, Issue 7 https://doi.org/10.1088/0029-5515/42/7/315	journal	July 2002
ELMs and constraints on the H-mode pedestal: peeling–ballooning stability calculation and comparison with experiment Snyder, P. B.; Wilson, H. R.; Ferron, J. R. Nuclear Fusion, Vol. 44, Issue 2 https://doi.org/10.1088/0029-5515/44/2/014	journal	January 2004
Pedestal stability comparison and ITER pedestal prediction Snyder, P. B.; Aiba, N.; Beurskens, M. Nuclear Fusion, Vol. 49, Issue 8 https://doi.org/10.1088/0029-5515/49/8/085035	journal	July 2009
Nonlinear ELM simulations based on a nonideal peeling–ballooning model using the BOUT++ code Xu, X. Q.; Dudson, B. D.; Snyder, P. B. Nuclear Fusion, Vol. 51, Issue 10 https://doi.org/10.1088/0029-5515/51/10/103040	journal	September 2011
Global kinetic ballooning mode simulations in BOUT++ Ma, C. H.; Xu, X. Q. Nuclear Fusion, Vol. 57, Issue 1 https://doi.org/10.1088/0029-5515/57/1/016002	journal	September 2016
A quarter-century of H-mode studies Wagner, F. Plasma Physics and Controlled Fusion, Vol. 49, Issue 12B https://doi.org/10.1088/0741-3335/49/12B/S01	journal	November 2007
Nonlinear Simulations of Peeling-Ballooning Modes with Anomalous Electron Viscosity and their Role in Edge Localized Mode Crashes Xu, X. Q.; Dudson, B.; Snyder, P. B. Physical Review Letters, Vol. 105, Issue 17 https://doi.org/10.1103/PhysRevLett.105.175005	journal	October 2010
Global Gyrokinetic Simulation of Tokamak Edge Pedestal Instabilities Wan, Weigang; Parker, Scott E.; Chen, Yang Physical Review Letters, Vol. 109, Issue 18 https://doi.org/10.1103/PhysRevLett.109.185004	journal	November 2012
Regime of Improved Confinement and High Beta in Neutral-Beam-Heated Divertor Discharges of the ASDEX Tokamak Wagner, F.; Becker, G.; Behringer, K. Physical Review Letters, Vol. 49, Issue 19 https://doi.org/10.1103/PhysRevLett.49.1408	journal	November 1982
Global Gyrokinetic Simulation of Tokamak Edge Pedestal Instabilities Wan, Weigang; Parker, Scott E.; Chen, Yang arXiv https://doi.org/10.48550/arxiv.1203.1571	text	January 2012

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