electron_z_advection
moment_kinetics.electron_z_advection — Modulemoment_kinetics.electron_z_advection.electron_z_advection! — Methodcalculate the z-advection term for the electron kinetic equation = wpa * vthe * df/dz
moment_kinetics.electron_z_advection.update_electron_speed_z! — Methodcalculate the electron advection speed in the z-direction at each grid point