The growth process of river dunes

S. Naqshband*, A.J.F. Hoitink*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademicpeer-review

Abstract

Dunes dominate the bed of sandy rivers and they are of central importance in predicting sediment transport and flow resistance. Using a novel acoustic instrument over migrating dunes in a laboratory setting, we quantify a number of dynamical properties that are crucial in our understanding and modeling of dune response to changes in flow and sediment transport. Measured sediment transport distribution during the dune growth phase reveals a negative spatial lag between dune crest and maximum sediment transport rate. In absence of this spatial lag, the dune field is observed to grow by merging of smaller, faster migrating dunes.

Original languageEnglish
Title of host publicationRiver Flow 2020 - Proceedings of the 10th Conference on Fluvial Hydraulics
EditorsWim Uijttewaal, Mario J. Franca, Daniel Valero, Victor Chavarrias, Claudia Ylla Arbos, Ralph Schielen, Ralph Schielen, Alessandra Crosato
Place of PublicationLondon
PublisherCRC Press/Balkema
Pages267-271
Number of pages5
Edition1
ISBN (Electronic)9780367627737, 9781003110958
DOIs
Publication statusPublished - 28 Aug 2020
Event10th Conference on Fluvial Hydraulics, River Flow 2020 - Virtual, Online, Netherlands
Duration: 7 Jul 202010 Jul 2020

Publication series

NameRiver Flow 2020 - Proceedings of the 10th Conference on Fluvial Hydraulics

Conference/symposium

Conference/symposium10th Conference on Fluvial Hydraulics, River Flow 2020
Country/TerritoryNetherlands
CityVirtual, Online
Period7/07/2010/07/20

Fingerprint

Dive into the research topics of 'The growth process of river dunes'. Together they form a unique fingerprint.

Cite this