2D stream hydrodynamic, sediment transport and bed morphology model for engineering applications

Jorge D. Abad, Gustavo C. Buscaglia, Marcelo Horacio Garcia

Research output: Contribution to journalArticle

Abstract

A 2D depth-averaged hydrodynamic, sediment transport and bed morphology model named STREMR HySeD is presented. The depth-averaged sediment transport equations are derived from the 3D dilute, multiphase, flow equations and are incorporated into the hydrodynamic model STREMR. The hydrodynamic model includes a two-equation turbulence model and a correction for the mean flow due to secondary flows. The suspended sediment load can be subdivided into different size classes using the continuum (two-fluid) approach; however, only one bed sediment size is used herein. The validation of the model is presented by comparing the suspended sediment transport module against experimental measurements and analytical solutions for the case of equilibrium sediment-laden in a transition from a rigid bed to a porous bed where re-suspension of sediment is prevented. On the other hand, the bed-load sediment transport and bed evolution numerical results are compared against bed equilibrium experimental results for the case of a meander bend. A sensitivity analysis based on the correction for secondary flow on the mean flow including the effect of secondary flow on bed shear stresses direction as well as the downward acceleration effect due to gravity on transverse bed slopes is performed and discussed. In general, acceptable agreement is found when comparing the numerical results obtained with STREMR HySeD against experimental measurements and analytical solutions.

Original languageEnglish (US)
Pages (from-to)1443-1459
Number of pages17
JournalHydrological Processes
Volume22
Issue number10
DOIs
StatePublished - May 15 2008

Fingerprint

sediment transport
hydrodynamics
secondary flow
engineering
suspended sediment
sediment
bottom stress
multiphase flow
meander
bedload
resuspension
shear stress
sensitivity analysis
turbulence
gravity
fluid
effect

Keywords

  • Bed evolution model
  • Bed-load
  • Depth-averaged model
  • Finite volume method
  • River morphodynamics
  • Sediment transport
  • Suspended load

ASJC Scopus subject areas

  • Water Science and Technology

Cite this

2D stream hydrodynamic, sediment transport and bed morphology model for engineering applications. / Abad, Jorge D.; Buscaglia, Gustavo C.; Garcia, Marcelo Horacio.

In: Hydrological Processes, Vol. 22, No. 10, 15.05.2008, p. 1443-1459.

Research output: Contribution to journalArticle

@article{86d4180e13154b6d9f234f4a0a4de4f9,
title = "2D stream hydrodynamic, sediment transport and bed morphology model for engineering applications",
abstract = "A 2D depth-averaged hydrodynamic, sediment transport and bed morphology model named STREMR HySeD is presented. The depth-averaged sediment transport equations are derived from the 3D dilute, multiphase, flow equations and are incorporated into the hydrodynamic model STREMR. The hydrodynamic model includes a two-equation turbulence model and a correction for the mean flow due to secondary flows. The suspended sediment load can be subdivided into different size classes using the continuum (two-fluid) approach; however, only one bed sediment size is used herein. The validation of the model is presented by comparing the suspended sediment transport module against experimental measurements and analytical solutions for the case of equilibrium sediment-laden in a transition from a rigid bed to a porous bed where re-suspension of sediment is prevented. On the other hand, the bed-load sediment transport and bed evolution numerical results are compared against bed equilibrium experimental results for the case of a meander bend. A sensitivity analysis based on the correction for secondary flow on the mean flow including the effect of secondary flow on bed shear stresses direction as well as the downward acceleration effect due to gravity on transverse bed slopes is performed and discussed. In general, acceptable agreement is found when comparing the numerical results obtained with STREMR HySeD against experimental measurements and analytical solutions.",
keywords = "Bed evolution model, Bed-load, Depth-averaged model, Finite volume method, River morphodynamics, Sediment transport, Suspended load",
author = "Abad, {Jorge D.} and Buscaglia, {Gustavo C.} and Garcia, {Marcelo Horacio}",
year = "2008",
month = "5",
day = "15",
doi = "10.1002/hyp.6697",
language = "English (US)",
volume = "22",
pages = "1443--1459",
journal = "Hydrological Processes",
issn = "0885-6087",
publisher = "John Wiley and Sons Ltd",
number = "10",

}

TY - JOUR

T1 - 2D stream hydrodynamic, sediment transport and bed morphology model for engineering applications

AU - Abad, Jorge D.

AU - Buscaglia, Gustavo C.

AU - Garcia, Marcelo Horacio

PY - 2008/5/15

Y1 - 2008/5/15

N2 - A 2D depth-averaged hydrodynamic, sediment transport and bed morphology model named STREMR HySeD is presented. The depth-averaged sediment transport equations are derived from the 3D dilute, multiphase, flow equations and are incorporated into the hydrodynamic model STREMR. The hydrodynamic model includes a two-equation turbulence model and a correction for the mean flow due to secondary flows. The suspended sediment load can be subdivided into different size classes using the continuum (two-fluid) approach; however, only one bed sediment size is used herein. The validation of the model is presented by comparing the suspended sediment transport module against experimental measurements and analytical solutions for the case of equilibrium sediment-laden in a transition from a rigid bed to a porous bed where re-suspension of sediment is prevented. On the other hand, the bed-load sediment transport and bed evolution numerical results are compared against bed equilibrium experimental results for the case of a meander bend. A sensitivity analysis based on the correction for secondary flow on the mean flow including the effect of secondary flow on bed shear stresses direction as well as the downward acceleration effect due to gravity on transverse bed slopes is performed and discussed. In general, acceptable agreement is found when comparing the numerical results obtained with STREMR HySeD against experimental measurements and analytical solutions.

AB - A 2D depth-averaged hydrodynamic, sediment transport and bed morphology model named STREMR HySeD is presented. The depth-averaged sediment transport equations are derived from the 3D dilute, multiphase, flow equations and are incorporated into the hydrodynamic model STREMR. The hydrodynamic model includes a two-equation turbulence model and a correction for the mean flow due to secondary flows. The suspended sediment load can be subdivided into different size classes using the continuum (two-fluid) approach; however, only one bed sediment size is used herein. The validation of the model is presented by comparing the suspended sediment transport module against experimental measurements and analytical solutions for the case of equilibrium sediment-laden in a transition from a rigid bed to a porous bed where re-suspension of sediment is prevented. On the other hand, the bed-load sediment transport and bed evolution numerical results are compared against bed equilibrium experimental results for the case of a meander bend. A sensitivity analysis based on the correction for secondary flow on the mean flow including the effect of secondary flow on bed shear stresses direction as well as the downward acceleration effect due to gravity on transverse bed slopes is performed and discussed. In general, acceptable agreement is found when comparing the numerical results obtained with STREMR HySeD against experimental measurements and analytical solutions.

KW - Bed evolution model

KW - Bed-load

KW - Depth-averaged model

KW - Finite volume method

KW - River morphodynamics

KW - Sediment transport

KW - Suspended load

UR - http://www.scopus.com/inward/record.url?scp=44649163172&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44649163172&partnerID=8YFLogxK

U2 - 10.1002/hyp.6697

DO - 10.1002/hyp.6697

M3 - Article

AN - SCOPUS:44649163172

VL - 22

SP - 1443

EP - 1459

JO - Hydrological Processes

JF - Hydrological Processes

SN - 0885-6087

IS - 10

ER -