Abstract
Mean flow properties and turbulent characteristics of open channel flow with bed-load transport were experimentally studied in the 550×25.8×20cm flume with erodible gravel bed. The sand with the diameters of 0.59mm and 1.19mm were used and the rate of bed-load transport reach to 13g/cm·sec. The velocity were measured by ADV, and the characteristics of the turbulent intensity and the spectra of turbulent velocity were analyzed. The experimental results show that: 1) the mean velocity profile of open channel flow with bed-load can be expressed by a log-law; 2) the turbulent intensity near bed decreases with the increase of bed-load transport rate; 3) the spectrum of turbulent velocity also changes as the increase in bed-load transport.
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