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We have developed the extended transport model based on MHD ordering to incorporate not only non-ambipolar loss flux but also turbulent diffusivity due to ITG turbulence with E × B shearing rate. Usin...g this model, we investigate the influence of fluctuation on transition and transport. The self-oscillation is observed when the perturbation is appled in the plasma boundary. To check the sensitivity of numerical scheme and transport model on the self-oscillation, we compare results of the different formula of E × B shearing rate and of the threshold function in the thermal diffusivity. The dependence of grid spacing in the numerical calculation is also investigated.show more
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