Transport Driven by G Modes and Resistive Drift Waves Based on Scale Invariance

概要

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Scale transformation introduced by Connor and Taylor is applied to the modelequations for the resistive interchange mode (g mode) and the resistive drift wave in ahigh shear helical system. The electron pressure gradient term in Ohm's law is essen-tial in deriving the present results. Scaling of collisionless transport along stochasticfields due to the g modes coincides with the result based on the mixing length theory.When the resistive drift waves are dominant, the predicted transport is tc'/ .5' times thepseudo-classical transport, where tc is the characteristic length of density gradient ands is the shear parameter. The transport coefficient xvhich results from the g mode and/or the resistive drift wave turbulence increases towards the edge. The density fluctua-tion for the resistive drift wave turbulence scales as (T./n)"'tc which also increasestoward the edge in most toroidal plasmas.
社団法人日本物理学会の論文
1987-03-15