ImposedDiskDrift
This parameter, which defaults to
zero, corresponds to an extra torque added everywhere to the disk
material so as to induce a global radial drift of this latter, in
addition to the viscous drift. This was implemented for the "in the
place migration" technique used in Masset
& Papaloizou (2003), section 5.6 (see in particular Eq.
34). The value of ImposedDiskDrift
corresponds to the radial velocity imposed at r=1 (this radial velocity depends
on radius so that the drift is steady state).