3-DIMENSIONAL MHD EQUILIBRIUM IN THE PRESENCE OF BOOTSTRAP CURRENT FOR THE LARGE HELICAL DEVICE

被引：41
作者：
WATANABE, K
NAKAJIMA, N
OKAMOTO, M
NAKAMURA, Y
WAKATANI, M
机构：
[1] NATL INST FUS SCI,NAGOYA 46401,JAPAN
[2] KYOTO UNIV,PLASMA PHYS LAB,KYOTO 606,JAPAN
来源：
NUCLEAR FUSION | 1992年 / 32卷 / 09期
关键词：
D O I：
10.1088/0029-5515/32/9/I01
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：
Three-dimensional MHD equilibria including the bootstrap current self-consistently are studied for the Large Helical Device (LHD). The magnitude of the bootstrap current is sensitive to the magnetic axis position or the Shafranov shift in LHD, which is proportional to the plasma pressure and inversely proportional to the rotational transform. Since the bootstrap current enhances the rotational transform and reduces the Shafranov shift, the self-consistent MHD equilibrium is crucial for estimating the bootstrap current. The total bootstrap current exceeds 100 kA for LHD plasmas with volume averaged beta [beta] greater than or similar to 1 % if both electrons and ions belong to the almost collisionless 1/nu regime in the whole plasma region. Effects of the vertical field, the quadrupole field and the pressure profile on the bootstrap current are also investigated.
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收藏
页码：1499 / 1513
页数：15
相关论文
共 14 条
[1]   GUIDING CENTER DRIFT EQUATIONS [J].
BOOZER, AH .
PHYSICS OF FLUIDS, 1980, 23 (05) :904-908
[2]   STEEPEST-DESCENT MOMENT METHOD FOR 3-DIMENSIONAL MAGNETOHYDRODYNAMIC EQUILIBRIA [J].
HIRSHMAN, SP ;
WHITSON, JC .
PHYSICS OF FLUIDS, 1983, 26 (12) :3553-3568
[3]  
HIRSHMAN SP, 1986, COMPUT PHYS COMMUN, V43, P143, DOI DOI 10.1016/0010-4655(86)90058-5
[4]   DESIGN STUDY FOR THE LARGE HELICAL DEVICE [J].
IIYOSHI, A ;
FUJIWARA, M ;
MOTOJIMA, O ;
OHYABU, N ;
YAMAZAKI, K .
FUSION TECHNOLOGY, 1990, 17 (01) :169-187
[5]   AN INTEGRAL-EQUATION TECHNIQUE FOR THE EXTERIOR AND INTERIOR NEUMANN PROBLEM IN TOROIDAL REGIONS [J].
MERKEL, P .
JOURNAL OF COMPUTATIONAL PHYSICS, 1986, 66 (01) :83-98
[6]   BOOTSTRAP-CURRENT EXPERIMENTS IN A TOROIDAL PLASMA-CONFINEMENT DEVICE [J].
MURAKAMI, M ;
CARRERAS, BA ;
BAYLOR, LR ;
BELL, GL ;
BIGELOW, TS ;
ENGLAND, AC ;
GLOWIENKA, JC ;
HOWE, HC ;
JERNIGAN, TC ;
LEE, DK ;
LYNCH, VE ;
MA, CH ;
RASMUSSEN, DA ;
TOLLIVER, JS ;
WADE, MR ;
WILGEN, JB ;
WING, WR .
PHYSICAL REVIEW LETTERS, 1991, 66 (06) :707-710
[7]   OPTIMIZATION OF THE BOOTSTRAP CURRENT IN A LARGE HELICAL SYSTEM WITH L=2 [J].
NAKAJIMA, N ;
OKAMOTO, M ;
TODOROKI, J ;
NAKAMURA, Y ;
WAKATANI, M .
NUCLEAR FUSION, 1989, 29 (04) :605-616
[8]   NEOCLASSICAL FLOW, CURRENT, AND ROTATION IN GENERAL TOROIDAL SYSTEMS [J].
NAKAJIMA, N ;
OKAMOTO, M .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1992, 61 (03) :833-843
[9]   EQUILIBRIUM, STABILITY, AND DEEPLY TRAPPED ENERGETIC PARTICLE CONFINEMENT CALCULATIONS FOR 1 = 2 TORSATRON HELIOTRON CONFIGURATIONS [J].
NAKAMURA, Y ;
WAKATANI, M ;
LEBOEUF, JN ;
CARRERAS, BA ;
DOMINGUEZ, N ;
HOLMES, JA ;
LYNCH, VE ;
PAINTER, SL ;
GARCIA, L .
FUSION TECHNOLOGY, 1991, 19 (02) :217-233
[10]  
RENNER H, 1991, 13TH P INT C PLASM P, V2, P439
12