Local Cooling Effect of Rotation and Formation of Thermal Transport Barrier in Tokamaks

Chin. Phys. Lett.

1996, Vol. 13

Issue (9): 686-688 DOI:

Original Articles

Local Cooling Effect of Rotation and Formation of Thermal Transport Barrier in Tokamaks

QIU Xiao-ming (X. M. Qiu);DING Ning (N. Ding)

Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041

Cite this article:

QIU Xiao-ming (X. M. Qiu), DING Ning (N. Ding) 1996 Chin. Phys. Lett. 13 686-688

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Abstract A simple model, rotation-inducing local cooling, for the mechanism on the formation of thermal transport barrier and the increase in rotation velocity is presented. It is shown that the sheared rotation can make electron temperature profile T_e(r) steepen near the rotation layer and ▽T_e > 0 on some location inside it, in agreement with the experimental observations in tokamaks, such as JT-60U with (poloidal or toroidal) sheared rotation and HL-1M with a biased electrode. Such temperature profile can remarkably improve the energy confinement in tokamaks.

Keywords: 52.25.Fi 52.55.Fa

Published: 01 September 1996

PACS:	52.25.Fi	(Transport properties)
	52.55.Fa	(Tokamaks, spherical tokamaks)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1996/V13/I9/0686

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	QIU Xiao-ming (X. M. Qiu)
	DING Ning (N. Ding)

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