Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence

Li, B.; Sun, C. K.; Wang, X. Y.; Zhou, A.; Wang, X. G.; Ernst, D. R.

doi:10.1063/1.4935912

Title: Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence

Abstract

Fluctuation-induced E × B shear flow and energy transfer for plasma interchange turbulence are examined in a flux-driven system with both closed and open magnetic field lines. The nonlinear evolution of interchange turbulence shows the presence of two confinement regimes characterized by low and high E × B flow shear. In the first regime, the large-scale turbulent convection is dominant and the mean E × B shear flow is at a relatively low level. By increasing the heat flux above a certain threshold, the increased turbulent intensity gives rise to the transfer of energy from fluctuations to mean E × B flows. As a result, a transition to the second regime occurs, in which a strong mean E × B shear flow is generated.

Authors:

Li, B. ^[1]; Sun, C. K. ^[2];

^[2]; Zhou, A. ^[2]; Wang, X. G. ^[2]; Ernst, D. R. ^[3]

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Peking Univ., Beijing (China)
Peking Univ., Beijing (China)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Publication Date:: Thu Nov 19 00:00:00 EST 2015

Research Org.:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1469661

Alternate Identifier(s):: OSTI ID: 1226661

Grant/Contract Number:: FC02-08ER54966

Resource Type:: Accepted Manuscript

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 22; Journal Issue: 11; Journal ID: ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Li, B., Sun, C. K., Wang, X. Y., Zhou, A., Wang, X. G., and Ernst, D. R. Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence.  United States: N. p., 2015. 
Web.  doi:10.1063/1.4935912.

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                    Li, B., Sun, C. K., Wang, X. Y., Zhou, A., Wang, X. G., & Ernst, D. R. Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence.  United States.  https://doi.org/10.1063/1.4935912

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                    Li, B., Sun, C. K., Wang, X. Y., Zhou, A., Wang, X. G., and Ernst, D. R. Thu .  
"Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence".  United States.  https://doi.org/10.1063/1.4935912.  https://www.osti.gov/servlets/purl/1469661.

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@article{osti_1469661,

  title        = {Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence},

  author       = {Li, B. and Sun, C. K. and Wang, X. Y. and Zhou, A. and Wang, X. G. and Ernst, D. R.},

  abstractNote = {Fluctuation-induced E × B shear flow and energy transfer for plasma interchange turbulence are examined in a flux-driven system with both closed and open magnetic field lines. The nonlinear evolution of interchange turbulence shows the presence of two confinement regimes characterized by low and high E × B flow shear. In the first regime, the large-scale turbulent convection is dominant and the mean E × B shear flow is at a relatively low level. By increasing the heat flux above a certain threshold, the increased turbulent intensity gives rise to the transfer of energy from fluctuations to mean E × B flows. As a result, a transition to the second regime occurs, in which a strong mean E × B shear flow is generated.},

  doi          = {10.1063/1.4935912},

  journal      = {Physics of Plasmas},

  number       = 11,

  volume       = 22,

  place        = {United States},

  year         = {Thu Nov 19 00:00:00 EST 2015},

  month        = {Thu Nov 19 00:00:00 EST 2015}

}

Copy to clipboard

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Works referenced in this record:

Observation of the $L − H$ Confinement Bifurcation Triggered by a Turbulence-Driven Shear Flow in a Tokamak Plasma
journal, March 2014

Yan, Z.; McKee, G. R.; Fonck, R.
Physical Review Letters, Vol. 112, Issue 12
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Frequency-Resolved Nonlinear Turbulent Energy Transfer into Zonal Flows in Strongly Heated $L$ -Mode Plasmas in the HL-2A Tokamak
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Xu, M.; Tynan, G. R.; Diamond, P. H.
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Turbulence and intermittent transport at the boundary of magnetized plasmas
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Garcia, O. E.; Naulin, V.; Nielsen, A. H.
Physics of Plasmas, Vol. 12, Issue 6
DOI: 10.1063/1.1925617

Flux-driven simulations of turbulence collapse
journal, March 2015

Park, G. Y.; Kim, S. S.; Jhang, Hogun
Physics of Plasmas, Vol. 22, Issue 3
DOI: 10.1063/1.4914841

High- and Low-Confinement Modes in Simple Magnetized Toroidal Plasmas
journal, June 2008

Ricci, Paolo; Rogers, B. N.; Brunner, S.
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Malkov, M. A.; Diamond, P. H.; Miki, K.
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The role of zonal flows and predator–prey oscillations in triggering the formation of edge and core transport barriers
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Schmitz, L.; Zeng, L.; Rhodes, T. L.
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Warm-ion drift Alfvén turbulence and the L-H transition
journal, May 1998

Scott, B.
Plasma Physics and Controlled Fusion, Vol. 40, Issue 5
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Confinement and bursty transport in a flux-driven convection model with sheared flows
journal, May 2003

Garcia, O. E.; Bian, N. H.; Paulsen, J-V
Plasma Physics and Controlled Fusion, Vol. 45, Issue 6
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Turbulence Phase Space in Simple Magnetized Toroidal Plasmas
journal, April 2010

Ricci, Paolo; Rogers, B. N.
Physical Review Letters, Vol. 104, Issue 14
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Plasma transport and turbulence in the Helimak: Simulation and experiment
journal, August 2009

Li, B.; Rogers, B. N.; Ricci, P.
Physics of Plasmas, Vol. 16, Issue 8
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Mechanisms and dynamics of the external transport barrier formation in non-linear plasma edge simulations
journal, June 2015

Chôné, L.; Beyer, P.; Sarazin, Y.
Nuclear Fusion, Vol. 55, Issue 7
DOI: 10.1088/0029-5515/55/7/073010

L-H transition dynamics in fluid turbulence simulations with neoclassical force balance
journal, July 2014

Chôné, L.; Beyer, P.; Sarazin, Y.
Physics of Plasmas, Vol. 21, Issue 7
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Low-to-high confinement transition simulations in divertor geometry
journal, May 2000

Xu, X. Q.; Cohen, R. H.; Rognlien, T. D.
Physics of Plasmas, Vol. 7, Issue 5
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Transport of perpendicular edge momentum by drift-interchange turbulence and blobs
journal, March 2008

Myra, J. R.; Russell, D. A.; D’Ippolito, D. A.
Physics of Plasmas, Vol. 15, Issue 3
DOI: 10.1063/1.2889419

Dynamical simulations of boundary plasma turbulence in divertor geometry
journal, July 2002

Xu, X. Q.; Nevins, W. M.; Cohen, R. H.
New Journal of Physics, Vol. 4
DOI: 10.1088/1367-2630/4/1/353

Turbulence and bias-induced flows in simple magnetized toroidal plasmas
journal, May 2011

Li, B.; Rogers, B. N.; Ricci, P.
Physical Review E, Vol. 83, Issue 5
DOI: 10.1103/PhysRevE.83.056406

Nonlinear reduced Braginskii equations with ion thermal dynamics in toroidal plasma
journal, June 1997

Zeiler, A.; Drake, J. F.; Rogers, B.
Physics of Plasmas, Vol. 4, Issue 6
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Drift-ordered fluid equations for field-aligned modes in low-β collisional plasma with equilibrium pressure pedestals
journal, December 2003

Simakov, Andrei N.; Catto, Peter J.
Physics of Plasmas, Vol. 10, Issue 12
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Dynamics of L–H transition and I-phase in EAST
journal, September 2014

Xu, G. S.; Wang, H. Q.; Xu, M.
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Works referencing / citing this record:

Magnetic curvature effects on plasma interchange turbulence
journal, June 2016

Li, B.; Liao, X.; Sun, C. K.
Physics of Plasmas, Vol. 23, Issue 6
DOI: 10.1063/1.4953610

Global 3D two-fluid simulations of the tokamak edge region: Turbulence, transport, profile evolution, and spontaneous E × B rotation
journal, May 2017

Zhu, Ben; Francisquez, Manaure; Rogers, Barrett N.
Physics of Plasmas, Vol. 24, Issue 5
DOI: 10.1063/1.4978885

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Similar Records

Title: Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence

Abstract

Citation Formats

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journal, June 2012

Dynamics of Low-Intermediate–High-Confinement Transitions in Toroidal Plasmas
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Turbulence and intermittent transport at the boundary of magnetized plasmas
journal, June 2005

Flux-driven simulations of turbulence collapse
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High- and Low-Confinement Modes in Simple Magnetized Toroidal Plasmas
journal, June 2008

Zonal flow production in the L–H transition in Alcator C-Mod
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journal, March 2015

Computations of Intermittent Transport in Scrape-Off Layer Plasmas
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The role of zonal flows and predator–prey oscillations in triggering the formation of edge and core transport barriers
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Warm-ion drift Alfvén turbulence and the L-H transition
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Confinement and bursty transport in a flux-driven convection model with sheared flows
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Plasma transport and turbulence in the Helimak: Simulation and experiment
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L-H transition dynamics in fluid turbulence simulations with neoclassical force balance
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Low-to-high confinement transition simulations in divertor geometry
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Transport of perpendicular edge momentum by drift-interchange turbulence and blobs
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Dynamical simulations of boundary plasma turbulence in divertor geometry
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Nonlinear reduced Braginskii equations with ion thermal dynamics in toroidal plasma
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Drift-ordered fluid equations for field-aligned modes in low-β collisional plasma with equilibrium pressure pedestals
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journal, September 2014

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journal, June 2016

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