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We study the effects of Resonant Magnetic Perturbations (RMPs) on turbulence,flows and confinement in the framework of resistive drift-wave turbulence. Thiswork was motivated, in parts, by experiments reported at the IAEA 2010conference [Y. Xu {\it et al}, Nucl. Fusion \textbf{51}, 062030] which showed adecrease of long-range correlations during the application of RMPs. We deriveand apply a zero-dimensional predator-prey model coupling the Drift-Wave ZonalMode system [M. Leconte and P.H. Diamond, Phys. Plasmas \textbf{19}, 055903] tothe evolution of mean quantities. This model has both density gradient driveand RMP amplitude as control parameters and predicts a novel type of transportbifurcation in the presence of RMPs. This model allows a description of thefull L-H transition evolution with RMPs, including the mean sheared flowevolution. The key results are: i) The L-I and I-H power thresholds \emph{both}increase with RMP amplitude $|\bx|$, the relative increase of the L-I thresholdscales as $\Delta P_{\rm LI} \propto |\bx|^2 \nu_*^{-2} \gyro^{-2}$, where$\nu_*$ is edge collisionality and $\gyro$ is the sound gyroradius. ii) RMPsare predicted to \emph{decrease} the hysteresis between the forward andback-transition. iii) Taking into account the mean density evolution, thedensity profile - sustained by the particle source - has an increased turbulentdiffusion compared with the reference case without RMPs which provides onepossible explanation for the \emph{density pump-out} effect.

Impact of Resonant Magnetic Perturbations on Zonal Modes, Drift-Wave Turbulence and the L-H Transition Threshold