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.

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