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Title: Nonlinear low noise particle-in-cell simulations of electron temperature gradient driven turbulence

Abstract

In this Letter, it is shown that global, nonlinear, particle-in-cell (PIC) simulations of electron temperature driven turbulence recover the same level of transport as flux-tube codes when the level of statistical noise, associated with the PIC discretization, is sufficiently small. An efficient measure of the signal-to-noise ratio, applicable to every PIC code, is introduced. This diagnostic provides a direct measure of the quality of PIC simulations and allows for the validation of analytical estimates of the numerical noise. Global simulations for values of {rho}{sub e}{sup *}<1/450 (normalized electron gyroradius) show no evidence of a gyro-Bohm scaling.

Authors:
; ; ; ; ; ;  [1];  [2];  [3]
  1. Max-Planck-Institut fuer Plasmaphysik, IPP-EURATOM Association, Garching (Germany)
  2. (Germany)
  3. (Switzerland)
Publication Date:
OSTI Identifier:
20960075
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 1; Other Information: DOI: 10.1063/1.2428280; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRON TEMPERATURE; ELECTRONS; ION TEMPERATURE; NONLINEAR PROBLEMS; PLASMA; PLASMA SIMULATION; SIGNAL-TO-NOISE RATIO; TEMPERATURE GRADIENTS; TURBULENCE; VALIDATION

Citation Formats

Bottino, A., Peeters, A. G., Hatzky, R., Jolliet, S., McMillan, B. F., Tran, T. M., Villard, L., Computer Center of the IPP and Max-Planck-Gesellschaft, Garching, and Centre de Recherches en Physique des Plasmas, EPFL, Lausanne. Nonlinear low noise particle-in-cell simulations of electron temperature gradient driven turbulence. United States: N. p., 2007. Web. doi:10.1063/1.2428280.
Bottino, A., Peeters, A. G., Hatzky, R., Jolliet, S., McMillan, B. F., Tran, T. M., Villard, L., Computer Center of the IPP and Max-Planck-Gesellschaft, Garching, & Centre de Recherches en Physique des Plasmas, EPFL, Lausanne. Nonlinear low noise particle-in-cell simulations of electron temperature gradient driven turbulence. United States. doi:10.1063/1.2428280.
Bottino, A., Peeters, A. G., Hatzky, R., Jolliet, S., McMillan, B. F., Tran, T. M., Villard, L., Computer Center of the IPP and Max-Planck-Gesellschaft, Garching, and Centre de Recherches en Physique des Plasmas, EPFL, Lausanne. Mon . "Nonlinear low noise particle-in-cell simulations of electron temperature gradient driven turbulence". United States. doi:10.1063/1.2428280.
@article{osti_20960075,
title = {Nonlinear low noise particle-in-cell simulations of electron temperature gradient driven turbulence},
author = {Bottino, A. and Peeters, A. G. and Hatzky, R. and Jolliet, S. and McMillan, B. F. and Tran, T. M. and Villard, L. and Computer Center of the IPP and Max-Planck-Gesellschaft, Garching and Centre de Recherches en Physique des Plasmas, EPFL, Lausanne},
abstractNote = {In this Letter, it is shown that global, nonlinear, particle-in-cell (PIC) simulations of electron temperature driven turbulence recover the same level of transport as flux-tube codes when the level of statistical noise, associated with the PIC discretization, is sufficiently small. An efficient measure of the signal-to-noise ratio, applicable to every PIC code, is introduced. This diagnostic provides a direct measure of the quality of PIC simulations and allows for the validation of analytical estimates of the numerical noise. Global simulations for values of {rho}{sub e}{sup *}<1/450 (normalized electron gyroradius) show no evidence of a gyro-Bohm scaling.},
doi = {10.1063/1.2428280},
journal = {Physics of Plasmas},
number = 1,
volume = 14,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}