Radial drift velocity of particles (upper panel) and radial velocity of the gas (lower panel) in the high-mass, high-viscosity CPD (7–10). The position of the Galilean satellites on the ordinate is arbitrary. The gray region on the right indicates the tidally unstable region beyond R_H/3. The striped region on the left indicates the inner cavity. Solid lines indicate the case of a decretion disk where gas falls onto the CPD at the centrifugal radius (0.03 R_H). Dashed lines indicate the grain drift and gas radial velocity in the case of a pure accretion disk.