Gyrokinetic predictions of multiscale transport in a DIII-D ITER baseline discharge
作者: C. HollandN.T. HowardB.A. Grierson
作者单位: 1Center for Energy Research, University of California-San Diego, La Jolla, CA, United States of America
2Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, MA, United States of America
3Princeton Plasma Physics Laboratory, Princeton, NJ, United States of America
刊名: Nuclear Fusion, 2017, Vol.57 (6)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aa6c16
原始语种摘要: New multiscale gyrokinetic simulations predict that electron energy transport in a DIII-D ITER baseline discharge with dominant electron heating and low input torque is multiscale in nature, with roughly equal amounts of the electron energy flux Q e coming from long wavelength ion-scale ( k y ρ s < 1) and short wavelength electron-scale ( k y ρ s > 1) fluctuations when the gyrokinetic results match independent power balance calculations. Corresponding conventional ion-scale simulations are able to match the power balance ion energy flux Q i, but systematically underpredict Q e when doing so. Significant nonlinear cross-scale couplings are observed in the multiscale simulations, but the exact simulation...
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关键词翻译
关键词翻译
  • multiscale 通用换算
  • discharge 
  • transport 输运
  • match 比赛
  • balance 平衡
  • computational 计算的
  • confidence 信用
  • electron 电子
  • wavelength 波长
  • baseline 基线