Journal
JOURNAL OF HYDRAULIC RESEARCH
Volume 43, Issue 1, Pages 3-11Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00221680509500106
Keywords
velocity; turbulence; suspended sediment
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Understanding the interactions between sediment transport and turbulence in a supercritical flow is useful in the study of river hydraulics and fluvial systems and the modeling of such flows in nature. Toward this end, 11 profiles of suspended-sediment concentration and fluid velocity were collected in supercritical conditions over low-relief antidunes in a recirculating laboratory flume. It was found that velocity profiles agreed well with the law of the wall, and that turbulence intensities were similar to those in clear-water flows. The classic Rouse equation was found to under-predict concentration values in the upper 60-80% of the flow depth and a slightly modified version was proposed and successfully tested against experimental data from the present study and others.
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