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22-27 October 2018
Mahatma Mandir Conference Centre
Asia/Kolkata timezone
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Nonlinear evolution of multi-helicity neoclassical tearing modes in HL-2A low rotation plasmas

25 Oct 2018, 08:30
4h
Mahatma Mandir Conference Centre

Mahatma Mandir Conference Centre

Gandhinagar (nearest Airport: Ahmedabad), India
Poster P5 Posters

Speaker

Dr Xiaoquan JI (Southwestern Institute of Physics, Chengdu 610041 China)

Description

In HL-2A low rotation and relatively low density plasmas, the critical threshold of the intrinsic error field penetration will be decreasing. And the multi-helicity islands can be seeded by the non-axisymmetric error field penetration, and lead to the change of rotation profile, enhanced transport or even disruption. Sheared flow arising from momentum injection can suppressed the coupled islands. For understanding the experimental results, numerical modelling will be carried out by means of reduced magnetohydrodynamic simulations. The results provide important evidence for NTMs stability predictions and their nonlinear dynamic in the low flow plasmas, such as ITER.

Country or International Organization China, People's Republic of
Paper Number EX/P5-15

Primary author

Dr Xiaoquan JI (Southwestern Institute of Physics, Chengdu 610041 China)

Co-authors

Dr Lai Wei (Dalian University of Technology) Dr Longwen Yan (Southwestern Instotute of Physics) Prof. Qingwei Yang (Southwestern Institute of Physics) Mr Shaoyong Liang (Southwestern Institute of Physics) Dr Tengfei Sun (Southwestern Institute of Physics) Prof. Yi Liu (southwestern institute of physics) Ms Yuan Xu (Southwestern Institute of Physics) Prof. Zhengxiong Wang (Dalian University of Technology)

Presentation Materials

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Paper