The long wavelength behaviour of ion-temperature-gradient-driven turbulence and the radial dependence of the turbulent ion conductivity

被引:28
作者
Ottaviani, M
Horton, W
Erba, M
机构
[1] UNIV TEXAS, INST FUS STUDIES, AUSTIN, TX 78712 USA
[2] SPPF CADARACHE, DRFC, CEA, EURATOM ASSOC, F-13108 ST PAUL LES DURANCE, FRANCE
关键词
D O I
10.1088/0741-3335/39/9/012
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
In this work a new model of the ion thermal transport, based on the long wavelength behaviour of the ion-temperature-gradient-driven turbulence, is introduced. A relevant property of the model is that the thermal conductivities grow with minor radius, as a consequence of the positive dependence of the correlation length and of the inverse of the correlation time on the ion temperature gradient. The model is assessed by comparing the predicted profiles of temperature and effective conductivity with the experimental profiles of several machines.
引用
收藏
页码:1461 / 1477
页数:17
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