Experimental data for reattachment length extracted from diagrams in Armaly et al. (1983).
The Reynolds number is defined based on the flow average velocity and the step height (S).

# Denham & Patrick (1974)	
Re_S [-],	x_r/S [-]
47.87, 2.78
100.00, 5.11
148.94, 6.99
200.00, 8.68
251.06, 10.19


# Armaly et al. (1983)	
Re_S [-],	x_r/S [-]
34.04, 2.48
47.87, 3.05
81.92, 4.36
141.49, 6.73
164.89, 7.97
234.04, 9.55
297.87, 11.47