Identification of compound channel flow parameters

[img]
Preview
PDF
Language: English
248Kb
Title:Identification of compound channel flow parameters
Creators:
Abida, Habib; habib dot abida at voila dot fr; Department of Earth Sciences, Faculty of Science, Sfax, Tunisia. Present address: Departement des Sciences de la Terre, Faculte des sciences de Sfax, Route Sokra, km 3,5 BP 802, 3018 Sfax, Tunisia
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 57, 3, pp. 172-181
Uncontrolled Keywords:Compound Channel, Flood Routing, Unsteady Flow, Optimization

Abstract

Optimization methods are used to estimate parameters required for routing floods through open compound channels. Besides initial and boundary flow conditions, data required especially include, cross-sectional area (A) of flow and conveyance (K) as functions of flow depth (y) for a representative cross-section of the study reach. Thus, instead of optimizing upon channel's geometric and hydraulic parameters, optimization is performed upon non-physical parameters in assumed A(y) and K(y) relationships. The optimization method selected for this application is the Nelder and Mead Simplex Algorithm. The objective function is expressed in terms of the relative differences between observed and simulated stages and discharges, which are evaluated based on the complete numerical solution of St Venant equations. This approach to formulating the optimization problem was applied to unsteady flow data sets for an experimental reach of the River Main in Northern Ireland. Based on statistical analysis, simulated and observed stages were found to be in good agreement.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Identification of compound channel flow parameters
Translated title:Identifikácia parametrov zložených kanálov
Creators:
Abida, Habib; habib dot abida at voila dot fr; Department of Earth Sciences, Faculty of Science, Sfax, Tunisia. Present address: Departement des Sciences de la Terre, Faculte des sciences de Sfax, Route Sokra, km 3,5 BP 802, 3018 Sfax, Tunisia
Uncontrolled Keywords:Compound Channel, Flood Routing, Unsteady Flow, Optimization
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:57
Number:3
Page Range:pp. 172-181
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:5426
Item Type:Article
Deposited On:13 May 2010 13:30
Last Modified:13 May 2010 11:30

Citation

Abida, Habib (2009) Identification of compound channel flow parameters. Journal of Hydrology and Hydromechanics, 57 (3). pp. 172-181. ISSN 0042-790X

Repository Staff Only: item control page