Experimental investigation of subaqueous bed forms has been undertaken and analyzed. Based upon already-existing theories in the area of sediment bed-form initiation and development, 7 experimental runs were carried out in a 440 mm-wide, glass-sided, 12m-long laboratory flume. For each run, bed profiles were measured at 30 sec intervals. The sediment in use was a fine sand with d_(50) = 0.2 mm. The study is the first of a series of studies looking at the phenomenon of submerged sediment bed-form behaviour. The main purpose of the study was to gain information on the relations central to linkages between bed-form propagation speed, sediment-transport rate and predictions of bed development. Relations predicting equilibrium sandform speeds as functions of flow conditions and sediments are available in the literature, although these relations have not been widely tested. More general relations predicting sand-form speeds as functions of flow conditions, sediments, and bed-form magnitudes remain to be determined.
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