Gyrokinetic simulation of ion temperature gradient driven turbulence in 3D toroidal geometry

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Description

Results from a fully nonlinear three dimensional toroidal electrostatic gyrokinetic simulation of the ion temperature gradient instability are presented. The model has fully gyro-averaged ion dynamics, including trapped particles, and adiabatic electrons. Simulations of large tokamak plasma volumes are made possible due to recent advances in {delta}f methods and massively parallel computing. Linearly, a coherent ballooning eigenmode is observed, where the mode is radially elongated. In the turbulent steady-state, the spectrum peaks around k{theta} {rho}{sub s} {approximately} 0.1 with the ballooning structure reduced, but still prevalent.

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13 p.

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Parker, S. E.; Lee, W. W. & Santoro, R. A. May 1, 1993.

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Results from a fully nonlinear three dimensional toroidal electrostatic gyrokinetic simulation of the ion temperature gradient instability are presented. The model has fully gyro-averaged ion dynamics, including trapped particles, and adiabatic electrons. Simulations of large tokamak plasma volumes are made possible due to recent advances in {delta}f methods and massively parallel computing. Linearly, a coherent ballooning eigenmode is observed, where the mode is radially elongated. In the turbulent steady-state, the spectrum peaks around k{theta} {rho}{sub s} {approximately} 0.1 with the ballooning structure reduced, but still prevalent.

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13 p.

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OSTI; NTIS; INIS; GPO Dep.

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  • Other Information: PBD: May 1993

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  • May 1, 1993

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  • Nov. 28, 2018, 2:33 p.m.

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  • Dec. 10, 2018, 8:14 p.m.

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Parker, S. E.; Lee, W. W. & Santoro, R. A. Gyrokinetic simulation of ion temperature gradient driven turbulence in 3D toroidal geometry, report, May 1, 1993; New Jersey. (https://digital.library.unt.edu/ark:/67531/metadc1384594/: accessed March 22, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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