Thermal transport effects on drift-tearing mode

被引:8
作者
Nishimura, Seiya [1 ]
Yagi, Masatoshi
Itow, Sanae-I.
Azumi, Masahumi
Itoh, Kimitaka
机构
[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan
[2] Kyushu Univ, Res Inst Appl Mech, Kasuga, Fukuoka 8168580, Japan
[3] Japan Atom Energy Agcy, Ctr Computat Sci & Esyst, Tokyo 1100015, Japan
[4] Natl Inst Fus Sci, Gifu 5095292, Japan
关键词
drift-tearing mode; reduced two-fluid equations; parallel thermal transport; diamagnetic effect; temperature gradient; free energy source;
D O I
10.1143/JPSJ.76.064501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The parameter dependence of the linear growth rate of collisional drift-tearing mode is investigated numerically and analytically using reduced two-fluid equations. Especially, the effect of parallel thermal transport on the growth rate is clarified. It is newly found that the thermal transport parallel to the ambient magnetic field line destabilizes the collisional drift-tearing mode and the diamagnetic drift frequency acts as an instability source in some parameter regime. With large parallel thermal transport coefficient, the collisional drift-tearing mode could be unstable even if the classical tearing mode is stable.
引用
收藏
页数:7
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