neutral_r_advection
moment_kinetics.neutral_r_advection — Modulemoment_kinetics.neutral_r_advection.neutral_advection_r! — Methoddo a single stage time advance in r (potentially as part of a multi-stage RK scheme)
moment_kinetics.neutral_r_advection.update_speed_neutral_r! — Methodcalculate the advection speed in the r-direction at each grid point