The impact of non-equilibrium flow on the structure of turbulence over river dunes

Unsworth, C.A.; Parsons, D.R.; Hardy, R.J.; Reesink, A.J.H.; Best, J.L.; Ashworth, P.J.; Keevil, G.M.

doi:10.1029/2017wr021377

The impact of non-equilibrium flow on the structure of turbulence over river dunes

Unsworth, C.A.; Parsons, D.R.; Hardy, R.J.; Reesink, A.J.H.; Best, J.L.; Ashworth, P.J.; Keevil, G.M.

Authors

C.A. Unsworth

D.R. Parsons

Professor Richard Hardy r.j.hardy@durham.ac.uk
Professor

A.J.H. Reesink

J.L. Best

P.J. Ashworth

G.M. Keevil

Abstract

This piece of research expands our description of how rivers flow over dunes on a river bed. Most of the scientific communities' research to date has used unnaturally steady conditions to measure how water moves over dunes. Yet these flow conditions are not strictly true to the variety of conditions nature produces, most importantly during floods. This research is the first detailed description of a wide range of flow states over dunes, and changes our present understanding of the structure of flow over dunes in rivers. Consequently, the scientific community will be able to use this new information to better model and simulate how rivers work, how they flood, and how they transport sediment towards the worlds deltas.

Citation

Unsworth, C., Parsons, D., Hardy, R., Reesink, A., Best, J., Ashworth, P., & Keevil, G. (2018). The impact of non-equilibrium flow on the structure of turbulence over river dunes. Water Resources Research, 54(9), 6566-6584. https://doi.org/10.1029/2017wr021377

Journal Article Type	Article
Acceptance Date	Aug 3, 2018
Online Publication Date	Sep 19, 2018
Publication Date	Sep 19, 2018
Deposit Date	Aug 29, 2018
Publicly Available Date	Mar 19, 2019
Journal	Water Resources Research
Print ISSN	0043-1397
Electronic ISSN	1944-7973
Publisher	Wiley
Peer Reviewed	Peer Reviewed
Volume	54
Issue	9
Pages	6566-6584
DOI	https://doi.org/10.1029/2017wr021377

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Copyright Statement
Unsworth, C. A., Parsons, D. R., Hardy, R. J., Reesink, A. J. H., Best, J. L., Ashworth, P. J. & Keevil, G. M. (2018). The impact of non-equilibrium flow on the structure of turbulence over river dunes. Water Resources Research 54(9): 6566-6584, 10.1029/2017WR021377 (DOI). To view the published open abstract, go to https://doi.org/ and enter the DOI.