Evolution of the disk radii (dashed curves) and the average disk eccentricities (solid curves) for different models in our parameter study: panel a) models with binary mass ratios 0.05 ≤ q ≤ 0.7, viscosity parameter α = 0.02, and aspect ratio h = 0.05; panel b) models with 0.005 ≤ α ≤ 0.4, q = 0.2, and h = 0.05; panel c) models with binary orbital eccentricity 0.0 ≤ e_bin ≤ 0.5, q = 0.2, α = 0.02, and h = 0.05; panel d) models with 0.01 ≤ h ≤ 0.1, q = 0.2, and α = 0.02; flaring disk models with γ = 2/7 are shown with dot-dashed curves; panel e) models with disk mass 0.001 ≤ q_disk/sec ≤ 0.1, q = 0.2, α = 0.02, and h = 0.05; panel f) models with open outflow and rigid boundary conditions assuming q = 0.2, α = 0.02, and h = 0.05.