Bifurcation effects on the plasma edge of tokamaks with ergodic limiter.


Autoria(s): Abud, Celso Vieira; Caldas, Ibere Luiz
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

24/04/2014

24/04/2014

01/07/2013

Resumo

In the present paper, we solve a twist symplectic map for the action of an ergodic magnetic limiter in a large aspect-ratio tokamak. In this model, we study the bifurcation scenarios that occur in the remnants regular islands that co-exist with chaotic magnetic surfaces. The onset of atypical local bifurcations created by secondary shearless tori are identified through numerical profiles of internal rotation number and we observe that their rupture can reduce the usual magnetic field line escape at the tokamak plasma edge.

Identificador

EPS Conference on Plasma Physics, 40, 2013, Espoo.

http://www.producao.usp.br/handle/BDPI/44636

http://ocs.ciemat.es/EPS2013PAP/pdf/P4.158.pdf

Idioma(s)

eng

Publicador

European Physical Society

Espoo

Relação

EPS Conference on Plasma Physics, 40

Direitos

restrictedAccess

Celso Vieira Abud

Palavras-Chave #Bifurcation effects #Plasma edge of tokamaks #Ergodic limiter #Física de plasmas #Tokamaks
Tipo

conferenceObject

Resumo