Morphodynamics of river dunes: suspended sediment transport along mobile dunes and dune development towards upper stage plane bed

Suleyman Naqshband

Research output: ThesisPhD Thesis - Research UT, graduation UT

89 Downloads (Pure)

Abstract

Dunes are the most common bedforms present in nearly all fluvial channels. Because of their dimensions, dunes are of central importance in predicting flow roughness and water levels. During floods in several rivers, dunes are observed to undergo an unstable transition regime after which they are washed out in what is called the upper stage plane bed. This morphological evolution of dunes to upper stage plane bed is the strongest bedform adjustment during time-varying flows and is associated with a significant change in hydraulic roughness and water levels. This thesis aims to obtain a better understanding and quantitative data of the flow and sediment transport mechanisms controlling the dune morphology and dune transition to upper stage plane beds.
Original languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Hulscher, Suzanne J.M.H., Supervisor
  • Ribberink, Jan Sjoerd, Supervisor
  • Hulscher, S.J.M.H., Supervisor
  • Ribberink, J.S., Supervisor
Award date18 Dec 2014
Place of PublicationEnschede
Publisher
Print ISBNs978-90-365-3813-8
DOIs
Publication statusPublished - 18 Dec 2014

Fingerprint

morphodynamics
suspended sediment
sediment transport
dune
river
bedform
roughness
water level
hydraulics

Keywords

  • METIS-307257
  • IR-93253

Cite this

@phdthesis{bf9ec1ea9c6145ef9ea408c382342f1d,
title = "Morphodynamics of river dunes: suspended sediment transport along mobile dunes and dune development towards upper stage plane bed",
abstract = "Dunes are the most common bedforms present in nearly all fluvial channels. Because of their dimensions, dunes are of central importance in predicting flow roughness and water levels. During floods in several rivers, dunes are observed to undergo an unstable transition regime after which they are washed out in what is called the upper stage plane bed. This morphological evolution of dunes to upper stage plane bed is the strongest bedform adjustment during time-varying flows and is associated with a significant change in hydraulic roughness and water levels. This thesis aims to obtain a better understanding and quantitative data of the flow and sediment transport mechanisms controlling the dune morphology and dune transition to upper stage plane beds.",
keywords = "METIS-307257, IR-93253",
author = "Suleyman Naqshband",
year = "2014",
month = "12",
day = "18",
doi = "10.3990/1.9789036538138",
language = "English",
isbn = "978-90-365-3813-8",
publisher = "University of Twente",
address = "Netherlands",
school = "University of Twente",

}

Morphodynamics of river dunes: suspended sediment transport along mobile dunes and dune development towards upper stage plane bed. / Naqshband, Suleyman.

Enschede : University of Twente, 2014. 149 p.

Research output: ThesisPhD Thesis - Research UT, graduation UT

TY - THES

T1 - Morphodynamics of river dunes: suspended sediment transport along mobile dunes and dune development towards upper stage plane bed

AU - Naqshband, Suleyman

PY - 2014/12/18

Y1 - 2014/12/18

N2 - Dunes are the most common bedforms present in nearly all fluvial channels. Because of their dimensions, dunes are of central importance in predicting flow roughness and water levels. During floods in several rivers, dunes are observed to undergo an unstable transition regime after which they are washed out in what is called the upper stage plane bed. This morphological evolution of dunes to upper stage plane bed is the strongest bedform adjustment during time-varying flows and is associated with a significant change in hydraulic roughness and water levels. This thesis aims to obtain a better understanding and quantitative data of the flow and sediment transport mechanisms controlling the dune morphology and dune transition to upper stage plane beds.

AB - Dunes are the most common bedforms present in nearly all fluvial channels. Because of their dimensions, dunes are of central importance in predicting flow roughness and water levels. During floods in several rivers, dunes are observed to undergo an unstable transition regime after which they are washed out in what is called the upper stage plane bed. This morphological evolution of dunes to upper stage plane bed is the strongest bedform adjustment during time-varying flows and is associated with a significant change in hydraulic roughness and water levels. This thesis aims to obtain a better understanding and quantitative data of the flow and sediment transport mechanisms controlling the dune morphology and dune transition to upper stage plane beds.

KW - METIS-307257

KW - IR-93253

U2 - 10.3990/1.9789036538138

DO - 10.3990/1.9789036538138

M3 - PhD Thesis - Research UT, graduation UT

SN - 978-90-365-3813-8

PB - University of Twente

CY - Enschede

ER -