Statistics and characteristic scales for bed load in a channel flow with sidewall effects

A. Radice, F. Ballio, V. Nikora

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Results are presented for a long-duration sediment transport experiment with a plane bed. High-frequency time series of sediment concentration, sediment velocity and solid discharge per unit width were measured using image analysis of video records. A range of transport intensities from a single experiment has been analysed considering transport at different distances from the sidewalls as an independent variable. First and second order temporal statistics of the spatially-averaged values of the transport parameters are presented, which are in agreement with previous studies. A refined statistical analysis of the sediment concentration dynamics, reflecting bed load process, is also given. The characteristic scales of the sediment concentration dynamics are evaluated and analyzed in conjunction with those of the near-bed and bulk flow fields.
Original languageEnglish
Pages (from-to)1072-1093
Number of pages22
JournalActa Geophysica
Volume58
Issue number6
DOIs
Publication statusPublished - 1 Jan 2010

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channel flow
bedload
beds
sediments
statistics
sediment
sediment transport
image analysis
statistical analysis
flow field
flow distribution
experiment
time series
effect

Cite this

Statistics and characteristic scales for bed load in a channel flow with sidewall effects. / Radice, A.; Ballio, F.; Nikora, V.

In: Acta Geophysica, Vol. 58, No. 6, 01.01.2010, p. 1072-1093.

Research output: Contribution to journalArticle

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