Formation of the shear layer in toroidal edge plasma

摘要: The equilibrium and stability of axisymmetric toroidal edge plasma in the presence an anomalous ballooninglike transport is studied. density evolves so that rate, D⊥/Ln2 equals sound transit time, cs/πqR. As a result, confinement coupled to local velocity such reduced (larger ion mass) leads improved confinement. A result large asymmetric generation nearly sonic parallel flows which allow system be unstable Stringer spin‐up instability. For weak magnetic pumping, poloidal rotation order speed (acs/qR) driven, forming localized shear layer. direction corresponds negative radial electric field closed flux region. strong pumping equal magnitude opposite diamagnetic drift, neoclassical result. Particle sources angle can strongly impact rotation....