PRANDTL NUMBER OF TOROIDAL PLASMAS

被引:29
作者
ITOH, K
ITOH, SI
FUKUYAMA, A
YAGI, M
AZUMI, M
机构
[1] KYUSHU UNIV 87, APPL MECH RES INST, KASUGA 816, JAPAN
[2] OKAYAMA UNIV, FAC ENGN, NAKA KU, OKAYAMA 700, JAPAN
关键词
PRANDTL NUMBER; HARTMANN NUMBER; MAGNETIC PRANDTL NUMBER; ANOMALOUS TRANSPORT; SELF-SUSTAINED TURBULENCE; TOKAMAK; HELICAL SYSTEMS; COLLISIONLESS SKIN DEPTH;
D O I
10.1143/JPSJ.62.4269
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Theory of the L-mode confinement in toroidal plasmas is developed. The Prandtl number, the ratio between the ion viscosity and the thermal conductivity is obtained for the anomalous transport process which is caused by the self-sustained turbulence in the toroidal plasma. It is found that the Prandtl number is of order unity both for the ballooning mode turbulence in tokamaks and for the interchange mode turbulence in helical system. The influence on the anomalous transport and fluctuation level is evaluated. Hartmann number and magnetic Prandtl number are also discussed.
引用
收藏
页码:4269 / 4276
页数:8
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