Cross-channel profile of mean flow speed for Re = 395. DNS data extracted from diagrams in Kawamura et al. (1999). y+ [-], u+ [-] 1.30, 1.38 2.25, 2.34 3.28, 3.35 4.40, 4.43 5.52, 5.45 6.82, 6.47 8.04, 7.31 9.44, 8.26 11.12, 9.04 12.45, 9.76 13.96, 10.42 15.63, 11.02 18.41, 11.80 21.68, 12.40 23.50, 12.75 26.30, 13.05 29.51, 13.47 33.04, 13.83 38.28, 14.25 46.56, 14.67 51.29, 15.03 58.48, 15.33 71.12, 15.81 83.56, 16.23 100.00, 16.71 121.62, 17.25 140.60, 17.67 171.00, 18.20 198.15, 18.86 232.81, 19.22 269.77, 19.76 297.17, 20.06 328.10, 20.24 361.41, 20.54 412.10, 20.72