Coarse-graining the electron distribution in turbulence simulations of tokamak plasmas

Yang Chen; Scott E. Parker; Gregory Rewoldt; Seung Hoe Ku; Gun Young Park; C. S. Chang

doi:10.1063/1.2884040

Coarse-graining the electron distribution in turbulence simulations of tokamak plasmas

Yang Chen, Scott E. Parker, Gregory Rewoldt, Seung Hoe Ku, Gun Young Park, C. S. Chang

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The coarse-graining procedure (CGP) [Y. Chen and S. E. Parker, Phys. Plasmas 14, 082301 (2007)] is implemented in the GEM code for electrons. While CGP introduces numerical dissipation in the particle-in-cell simulations, it is shown that CGP preserves physical dissipation effects such as the electron-ion collisional effects on the particle flux in ion-temperature-gradient driven turbulence. Kinetic simulation of an edge plasma is presented, which demonstrates the essential stabilizing effect of shear flow and the destabilizing effect of magnetic field perturbation in such a plasma.

Original language	English (US)
Article number	055905
Journal	Physics of Plasmas
Volume	15
Issue number	5
DOIs	https://doi.org/10.1063/1.2884040
State	Published - 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.2884040

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title = "Coarse-graining the electron distribution in turbulence simulations of tokamak plasmas",

abstract = "The coarse-graining procedure (CGP) [Y. Chen and S. E. Parker, Phys. Plasmas 14, 082301 (2007)] is implemented in the GEM code for electrons. While CGP introduces numerical dissipation in the particle-in-cell simulations, it is shown that CGP preserves physical dissipation effects such as the electron-ion collisional effects on the particle flux in ion-temperature-gradient driven turbulence. Kinetic simulation of an edge plasma is presented, which demonstrates the essential stabilizing effect of shear flow and the destabilizing effect of magnetic field perturbation in such a plasma.",

author = "Yang Chen and Parker, \{Scott E.\} and Gregory Rewoldt and Ku, \{Seung Hoe\} and Park, \{Gun Young\} and Chang, \{C. S.\}",

year = "2008",

doi = "10.1063/1.2884040",

language = "English (US)",

volume = "15",

journal = "Physics of Plasmas",

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T1 - Coarse-graining the electron distribution in turbulence simulations of tokamak plasmas

AU - Chen, Yang

AU - Parker, Scott E.

AU - Rewoldt, Gregory

AU - Ku, Seung Hoe

AU - Park, Gun Young

AU - Chang, C. S.

PY - 2008

Y1 - 2008

N2 - The coarse-graining procedure (CGP) [Y. Chen and S. E. Parker, Phys. Plasmas 14, 082301 (2007)] is implemented in the GEM code for electrons. While CGP introduces numerical dissipation in the particle-in-cell simulations, it is shown that CGP preserves physical dissipation effects such as the electron-ion collisional effects on the particle flux in ion-temperature-gradient driven turbulence. Kinetic simulation of an edge plasma is presented, which demonstrates the essential stabilizing effect of shear flow and the destabilizing effect of magnetic field perturbation in such a plasma.

AB - The coarse-graining procedure (CGP) [Y. Chen and S. E. Parker, Phys. Plasmas 14, 082301 (2007)] is implemented in the GEM code for electrons. While CGP introduces numerical dissipation in the particle-in-cell simulations, it is shown that CGP preserves physical dissipation effects such as the electron-ion collisional effects on the particle flux in ion-temperature-gradient driven turbulence. Kinetic simulation of an edge plasma is presented, which demonstrates the essential stabilizing effect of shear flow and the destabilizing effect of magnetic field perturbation in such a plasma.

UR - https://www.scopus.com/pages/publications/44649133179

UR - https://www.scopus.com/inward/citedby.url?scp=44649133179&partnerID=8YFLogxK

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SN - 1070-664X

VL - 15

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5

M1 - 055905

ER -

Coarse-graining the electron distribution in turbulence simulations of tokamak plasmas

Abstract

All Science Journal Classification (ASJC) codes

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