Author:
YANG Wenjun,LI Guoqiang,GONG Xueyu,GAO Xiang,LI Xiaoe
Abstract
Abstract
In this paper, NOVA/NOVA-K codes are used to investigate the stability of Alfvén eigenmodes (AEs) in the China Fusion Engineering Test Reactor (CFETR). Firstly, the stability of AEs excited by energetic alpha particles is investigated. For the fully non-inductive scenario, it is found that all AEs are stable, and the least stable toroidal mode number is
n
=
8
.
However, for the hybrid mode scenario, it is found that many AEs are unstable, and the least stable toroidal mode numbers are
n
=
7
,
8
.
Secondly, the effect of energetic alpha-particle parameters and beam ions on AE stability is also presented. The threshold of the least stable AE is about
β
crit
,
α
=
1.12
%
,
less than the value of alpha-particle beta (
β
α
=
1.34
%
). The result demonstrates that the AEs excited by alpha particles are weakly unstable. The effect of the beam ions on AE stability is found to be very weak in CFETR.
Funder
Natural Science Foundation of Hunan Province
National Natural Science Foundation of China
Hunan Nuclear Fusion International Science and Technology Innovation Cooperation Base
Opening Project of Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China
Key Scientific Research Program of Education Department of Hunan Province
Cited by
3 articles.
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