Impact of relative phase shift on inward turbulent spreading

Ma, C. H.; Xu, X. Q.; Xi, P. W.; Xia, T. Y.

doi:10.1063/1.4905644

Title: Impact of relative phase shift on inward turbulent spreading

Journal Article · Thu Jan 01 00:00:00 EST 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4905644· OSTI ID:1305896

Ma, C. H. ^[1];

^[2]; Xi, P. W. ^[1]; Xia, T. Y. ^[3]

Peking Univ., Beijing (China). School of Physics, Fusion Simulation Center and State Key Lab. of Nuclear Physics; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Chinese Academy of Sciences (CAS), Hefei (China). Inst. of Plasma Physics

The relative cross-phase between density, temperature and potential perturbations plays a major role in turbulent spreading and transport. Nonlinear Landau-Fluid simulations show that the electron wave-particle resonances provide a relatively strong parallel damping effect on the electron temperature perturbation and can induce a relative cross-phase shift of smaller than π/2 angle between E x B velocity and the electron temperature perturbation for large electron temperature gradient, which yields a large spreading for electron. The relative phase for ions is about π/2 and has no turbulent spreading effect on it. The inward turbulent spreading stops at the position where the radial turbulent correlation length is shorter than the magnetic surface spacing. The temperature pedestal height determines the energy loss due to the turbulent spreading.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE; International Thermonuclear Experimental Reactor (ITER)

Grant/Contract Number:: AC52-07NA27344; AC52-7NA27344

OSTI ID:: 1305896

Alternate ID(s):: OSTI ID: 1228478

Report Number(s):: LLNL-JRNL-652541

Journal Information:: Physics of Plasmas, Vol. 22, Issue 1; ISSN 1070-664X

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

Country of Publication:: United States

Language:: English

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Cited by: 12 works

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References (22)

Towards the construction of a model to describe the inter-ELM evolution of the pedestal on MAST Dickinson, D.; Saarelma, S.; Scannell, R. Plasma Physics and Controlled Fusion, Vol. 53, Issue 11 https://doi.org/10.1088/0741-3335/53/11/115010	journal	October 2011
Edge-localized-modes in tokamaks Leonard, A. W. Physics of Plasmas, Vol. 21, Issue 9 https://doi.org/10.1063/1.4894742	journal	September 2014
On the dynamics of edge-core coupling Hahm, T. S.; Diamond, P. H.; Lin, Z. Physics of Plasmas, Vol. 12, Issue 9 https://doi.org/10.1063/1.2034307	journal	September 2005
Hot particle stabilization of ballooning modes in tokamaks Miller, R. L.; Van Dam, J. W. Nuclear Fusion, Vol. 27, Issue 12 https://doi.org/10.1088/0029-5515/27/12/010	journal	December 1987
A first-principles predictive model of the pedestal height and width: development, testing and ITER optimization with the EPED model Snyder, P. B.; Groebner, R. J.; Hughes, J. W. Nuclear Fusion, Vol. 51, Issue 10 https://doi.org/10.1088/0029-5515/51/10/103016	journal	August 2011
Transport reduction via shear flow modification of the cross phase Ware, A. S.; Terry, P. W.; Diamond, P. H. Plasma Physics and Controlled Fusion, Vol. 38, Issue 8 https://doi.org/10.1088/0741-3335/38/8/034	journal	August 1996
Turbulence spreading and transport scaling in global gyrokinetic particle simulations Lin, Z.; Hahm, T. S. Physics of Plasmas, Vol. 11, Issue 3 https://doi.org/10.1063/1.1647136	journal	March 2004
Signatures of turbulence spreading during the H–L back-transition in TJ-II plasmas Estrada, T.; Hidalgo, C.; Happel, T. Nuclear Fusion, Vol. 51, Issue 3 https://doi.org/10.1088/0029-5515/51/3/032001	journal	February 2011
Linear gyrokinetic analysis of a DIII-D H-mode pedestal near the ideal ballooning threshold Wang, E.; Xu, X.; Candy, J. Nuclear Fusion, Vol. 52, Issue 10 https://doi.org/10.1088/0029-5515/52/10/103015	journal	September 2012
Microturbulence in DIII-D tokamak pedestal. I. Electrostatic instabilities Fulton, D. P.; Lin, Z.; Holod, I. Physics of Plasmas, Vol. 21, Issue 4 https://doi.org/10.1063/1.4871387	journal	April 2014
Existence of ion temperature gradient driven shear Alfvén instabilities in tokamaks Zonca, Fulvio; Chen, Liu; Dong, J. Q. Physics of Plasmas, Vol. 6, Issue 5 https://doi.org/10.1063/1.873449	journal	May 1999
Six-field two-fluid simulations of peeling–ballooning modes using BOUT++ Xia, T. Y.; Xu, X. Q.; Xi, P. W. Nuclear Fusion, Vol. 53, Issue 7 https://doi.org/10.1088/0029-5515/53/7/073009	journal	May 2013
A fast non-Fourier method for Landau-fluid operators Dimits, A. M.; Joseph, I.; Umansky, M. V. Physics of Plasmas, Vol. 21, Issue 5 https://doi.org/10.1063/1.4876617	journal	May 2014
Gyro-fluid and two-fluid theory and simulations of edge-localized-modes Xu, X. Q.; Xi, P. W.; Dimits, A. Physics of Plasmas, Vol. 20, Issue 5 https://doi.org/10.1063/1.4801746	journal	May 2013
Effects of q-profile structure on turbulence spreading: A fluctuation intensity transport analysis Yi, S.; Kwon, J. M.; Diamond, P. H. Physics of Plasmas, Vol. 21, Issue 9 https://doi.org/10.1063/1.4896059	journal	September 2014
Development of an Edge Transport Barrier at the H-Mode Transition of ASDEX Wagner, F.; Fussmann, G.; Grave, T. Physical Review Letters, Vol. 53, Issue 15 https://doi.org/10.1103/PhysRevLett.53.1453	journal	October 1984
Radial propagation of turbulence in tokamaks Garbet, X.; Laurent, L.; Samain, A. Nuclear Fusion, Vol. 34, Issue 7 https://doi.org/10.1088/0029-5515/34/7/I04	journal	July 1994
Gyrokinetic Studies on Turbulence-Driven and Neoclassical Nondiffusive Toroidal-Momentum Transport and the Effect of Residual Fluctuations in Strong $E \times B$ Shear Wang, W. X.; Hahm, T. S.; Ethier, S. Physical Review Letters, Vol. 102, Issue 3 https://doi.org/10.1103/PhysRevLett.102.035005	journal	January 2009
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
Fluid moment models for Landau damping with application to the ion-temperature-gradient instability Hammett, Gregory W.; Perkins, Francis W. Physical Review Letters, Vol. 64, Issue 25 https://doi.org/10.1103/PhysRevLett.64.3019	journal	June 1990
Towards the construction of a model to describe the inter-ELM evolution of the pedestal on MAST Dickinson, D.; Saarelma, S.; Scannell, R. arXiv https://doi.org/10.48550/arxiv.1107.3109	text	January 2011
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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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
Divertor heat flux simulations in ELMy H-mode discharges of EAST Xia, T. Y.; Xu, X. Q.; Wu, Y. B. Nuclear Fusion, Vol. 57, Issue 11 https://doi.org/10.1088/1741-4326/aa7bba	journal	August 2017
Study on edge localized mode during plasma vertical swing in HL-2A tokamak Wu, N.; Chen, S. Y.; Mou, M. L. Physics of Plasmas, Vol. 25, Issue 10 https://doi.org/10.1063/1.5049348	journal	October 2018
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