i 
9 
8 
7 
s = 0.138 exp(-I0.67 - 
5 
s, VELOCITY SCALE 
o 
~ wo oD 
O 0.05 0.10 Ors 0.20 O3Z5 
Y, ELEVATION ABOVE CREST OF BED DUNES (ft) 
Figure 26. Velocity scale versus elevation for flume velocity, 
Up = 0.930 foot per second. 
6) 
