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| he distribution of velocity is one of basic issues in river dynamics. Based on the experimental data measured by ADV in the flume of State Key Laboratory of Hydraulics (SKLH), this paper analyzed the vertical distribution of point velocity and the varying law of turbulence intensity for movable bed in an asymmetric compound channel. Above certain relative height, the streamwise point velocity follows the logarithmic distribution. Under the location, the velocity varies linearly approximately. For all discharges in experiments, the streamwise, lateral and vertical turbulence intensities bear the similarity. They increase with flow depth increasing. After they reach the maximum values, they decrease as flow depth increase. In the meantime, the bed configuration is measured for four discharges, respectively. During the course of width adjustment, the main channel deposits and its side slope and flood plain erode when clean water is supplied. By the analysis of the bed in stabilization, i |
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| Keywords:compound channels; velocity; turbulence intensity; width adjustment; movable bed |
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