Drift wave transport simulations of dimensionally similar JET discharges

Drift wave transport simulations of dimensionally similar JET discharges
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尺寸相似的 JET 放电的漂移波传输模拟

DOI:
10.1088/0029-5515/37/3/i10
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发表时间:
1997
期刊:
影响因子:
3.3
通讯作者:
J. Christiansen
J. Christiansen
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
H. Nordman;P. Strand;J. Weiland;J. Christiansen

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预测输运模拟尺寸相似的低约束模式放电已经进行了使用联合欧洲环(JET)数据库的实验数据。的模拟,基于陀螺玻姆输运模型的温度梯度驱动的漂移波,被发现重现密度和温度的实验配置文件以及。特别是,明显的玻姆和Goldstone样缩放的局部扩散系数得到的gyroradius是不同的。结果是由于相似条件下的小系统偏差和边际稳定性效应
Predictive transport simulations of dimensionally similar low confinement mode discharges have been performed using experimental data from Joint European Torus (JET) databases. The simulations, based on a gyro-Bohm transport model for temperature gradient driven drift waves, are found to reproduce the experimental profiles of density and temperatures well. In particular, apparent Bohm- and Goldston-like scalings of the local diffusivities are obtained as the gyroradius is varied. The results are due to small systematic deviations in the similarity conditions combined with marginal stability effects
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