Numerical Solution of Full Wave Equation for Fast Wave Current Drive in Tokamak

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2012, Vol. 29 ›› Issue (3): 375-382.

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Numerical Solution of Full Wave Equation for Fast Wave Current Drive in Tokamak

LIU Yan^1,2, GONG Xueyu¹, YANG Lei^1,2, PENG Xiaowei^1,3, YIN Lan¹

1. School of Nuclear Science and Technology, University of South China, Hengyang 421001, China;
2. School of Opto-electronic Information Science and Technology, Yantai University, Yantai 264005, China;
3. Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Received:2011-07-06 Revised:2011-12-23 Online:2012-05-25 Published:2012-05-25

Abstract

Abstract: A full wave numerical method is developed for fast wave current drive in tokamak plasmas,in which finite Larmor radius effects and parallel dispersion are taken into account.A physical model with full wave are developed.Electric field distribution in radial is obtained.It shows that fast wave can propagate to central plasma;Mode conversion happened near central plasmas;Fast wave can drive current in centre to improve balance current profile;Parallel electric is weaker than that in vertical direction.The current is droven by Landau damping and transit-time magnetic pumping.

Key words: tokamak, ion cyclotron waves, fast wave, current drive

CLC Number:

TL612.4+2.4

LIU Yan, GONG Xueyu, YANG Lei, PENG Xiaowei, YIN Lan. Numerical Solution of Full Wave Equation for Fast Wave Current Drive in Tokamak[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2012, 29(3): 375-382.

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Numerical Solution of Full Wave Equation for Fast Wave Current Drive in Tokamak

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