Chin. Phys. Lett.  1998, Vol. 15 Issue (10): 721-723    DOI:
Original Articles |
Model for Heat Pinch in Reversed Magnetic Shear Tokamak Plasmas
QIU Xiao-ming;WANG Ai-ke
Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041
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QIU Xiao-ming, WANG Ai-ke 1998 Chin. Phys. Lett. 15 721-723
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Abstract A simple model is proposed to explain the recent experiment in TFTR and the more recent one in JT-60U. In the model the significant reduction of effective thermal diffusivities of ions and electrons ( xieff and xeeff) is attributed to the inward flows of drift wave energy, induced by the synergistic effects of the reversed magnetic shear and E X B velocity shear, where E is due to ion pressure gradient. Numerical results demonstrate the predictions of the present model, in particular, the numerical results for xieff are in good agreement with experimental trents.
Keywords: 52.55.Fa      52.25.Fi      52.35.Kt     
Published: 01 October 1998
PACS:  52.55.Fa (Tokamaks, spherical tokamaks)  
  52.25.Fi (Transport properties)  
  52.35.Kt (Drift waves)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1998/V15/I10/0721
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QIU Xiao-ming
WANG Ai-ke
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