Evolution of the disk with Z = 2Z_⊙ and U_f = 1 m s⁻¹. The thin black line stands for H-He gas surface density as a function of distance to star, thick black for planetesimal surface density, red for solid silicates, red dashed for silicate vapor, blue dashed for water vapor, blue for water ice, cyan for CO ice, cyan dashed for CO vapor. The black dashed line plots the Stokes number (right-hand scale).