Scrape-Off Layer impurity transport including the effects of turbulence on ionization/recombination terms
作者： F. Guzmán , Y. Marandet , P. Tamain , D. Moulton , H. Bufferand
DOI: 10.1016/J.JNUCMAT.2014.10.091
关键词: Vector field 、 Atomic physics 、 Impurity 、 Turbulence 、 Charge (physics) 、 Layer (electronics) 、 Chemistry 、 Ionization 、 Recombination 、 Current (fluid)
摘要: Abstract In most current modelling efforts, the ionization-recombination equilibrium for impurities neglects effect of fluctuations on source terms. However, these effects may not be negligible in Scrape-off layer (SOL). Fluctuations can shift ionization stages towards lower temperature areas, when transport is taken into account. A set passive tracers has been implemented a non-isothermal version turbulence code TOKAM2D to describe different charge states impurities. Comparisons have performed Be between local balance calculated using average density and profiles, calculations including first only ExB velocity field then also averaging effects. We show that latter lead substantial shifts high cases ( n e ⩾ 10 20 m −3 ).
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