STUDY OF LOCAL ELECTRON HEAT-TRANSPORT ON TFTR

被引:22
作者
FREDRICKSON, ED [1 ]
JANOS, AC [1 ]
MCGUIRE, KM [1 ]
SCOTT, SD [1 ]
TAYLOR, G [1 ]
CHANG, Z [1 ]
机构
[1] UNIV WISCONSIN,MADISON,WI 53706
关键词
D O I
10.1088/0029-5515/33/12/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
The anomously fast relaxation of the perturbations to the electron temperature profile caused by a sawtooth crash has been studied extensively on TFTR. It is shown that on a short time-scale the heat pulse is not simply diffusive as has been generally assumed, but that modelling of the heat pulse requires a transient enhancement in chi(e) following the sawtooth crash. It is also shown that the time dependent enhancement in chi(e) predicted by non-linear thermal transport models, i.e. incremental chi models Dr the Rebut-Lallia-Watkins transport model, is much smaller than that required to explain the anomalies the heat pulse propagation.
引用
收藏
页码:1759 / 1774
页数:16
相关论文
共 29 条
[1]  
[Anonymous], 1975, FIZ PLAZMY
[2]   TOROIDAL STUDIES OF SAWTOOTH OSCILLATIONS IN TOKAMAKS [J].
AYDEMIR, AY ;
WILEY, JC ;
ROSS, DW .
PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1989, 1 (04) :774-787
[3]  
BATHA S, 1992, B AM PHYS SOC, V37, P1481
[4]  
BATY H, 1990, CONTROLLED FUSIO 2 B, V14, P889
[5]   IMPROVED BULK TRANSPORT OF H-MODE PLASMAS DUE TO TE-PROFILE INVARIANCE [J].
BECKER, G .
NUCLEAR FUSION, 1991, 31 (04) :663-671
[6]   MEASUREMENT OF CHI-E IN ISX-B BEAM-HEATED DISCHARGES BY HEAT PULSE-PROPAGATION [J].
BELL, JD ;
DUNLAP, JL ;
PARE, VK ;
CALLEN, JD ;
HOWE, HC ;
LAZARUS, EA ;
MURAKAMI, M ;
THOMAS, CE .
NUCLEAR FUSION, 1984, 24 (08) :997-1002
[7]   HEAT-PULSE PROPAGATION IN TOKAMAKS AND THE ROLE OF DENSITY PERTURBATIONS [J].
BISHOP, CM ;
CONNOR, JW .
PLASMA PHYSICS AND CONTROLLED FUSION, 1990, 32 (03) :203-211
[8]  
CALLEN JD, 1977, PHYS REV LETT, V38, P971
[9]   HEAT PULSE ANALYSIS IN JET LIMITER AND X-POINT PLASMAS [J].
CARDOZO, NJL ;
DEHAAS, JCM .
NUCLEAR FUSION, 1990, 30 (03) :521-532
[10]   SAWTOOTH HEAT PULSE-PROPAGATION IN TOKAMAKS [J].
CARDOZO, NJL ;
SIPS, ACC .
PLASMA PHYSICS AND CONTROLLED FUSION, 1991, 33 (11) :1337-1345