Drift Ordered Short Mean Free Path Fluid Equations

The complete short mean free path description of magnetized plasma in the drift ordering has recently been derived and used to obtain a reduced fluid description appropriate to the edge of a tokamak. The complete description is also being used to study the radial transport of toroidal angular momentum that determines the radial electric field and flows in a tokamak. The simplest case is an up-down asymmetric tokamak since there is a large up-down asymmetric term in the gyro-viscosity. Up-down asymmetric are considered here to highlight the impact of the magnetic field topology on the ion flow in the Pfirsch-Schluter regime.