Floods effects on rivers morphological changes application to the Medjerda River in Tunisia

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Title:Floods effects on rivers morphological changes application to the Medjerda River in Tunisia
Creators:
Gharbi, Mohamed; University of Carthage, National Institute of Agronomy of Tunisia, Laboratory of Water Science & Technology, Tunis, Tunisia.
Soualmia, Amel; amel dot inat at hotmail dot fr; University of Carthage, National Institute of Agronomy of Tunisia, Laboratory of Water Science & Technology, Tunis, Tunisia.
Dartus, Denis; University of Toulouse, National Polytechnic Institute of Toulouse, Institute of Fluid Mechanics, Toulouse, France.
Masbernat, Lucien; University of Toulouse, National Polytechnic Institute of Toulouse, Institute of Fluid Mechanics, Toulouse, France.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 64, 1, pp. 56-66
Uncontrolled Keywords:floods, hydrodynamics, sediment transport, modelling, river morphology

Abstract

In Tunisia especially in the Medjerda watershed the recurring of floods becoming more remarkable. In order to limit this risk, several studies were performed to examine the Medjerda hydrodynamic. The analysis of results showed that the recurrences of floods at the Medjerda watershed is strongly related to the sediment transport phenomena. Initially, a one dimensional modelling was conducted in order to determine the sediment transport rate, and to visualize the river morphological changes during major floods. In continuity of this work, we will consider a two-dimensional model for predicting the amounts of materials transported by the Medjerda River. The goal is to visualize the Medjerda behaviour during extreme events and morphological changes occurred following the passage of the spectacular flood of January 2003. As a conclusion for this study, a comparative analysis was performed between 1D and 2D models results. The objective of these comparisons is to visualize the benefits and limitations of tested models. The analysis of the results demonstrate that 2D model is able to calculate the flow variation, sediment transport rates, and river morphological changes during extreme events for complicated natural domains with high accuracy comparing with 1D Model.

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

Title:Floods effects on rivers morphological changes application to the Medjerda River in Tunisia
Translated title:Floods effects on rivers morphological changes application to the Medjerda River in Tunisia
Creators:
Gharbi, Mohamed; University of Carthage, National Institute of Agronomy of Tunisia, Laboratory of Water Science & Technology, Tunis, Tunisia.
Soualmia, Amel; amel dot inat at hotmail dot fr; University of Carthage, National Institute of Agronomy of Tunisia, Laboratory of Water Science & Technology, Tunis, Tunisia.
Dartus, Denis; University of Toulouse, National Polytechnic Institute of Toulouse, Institute of Fluid Mechanics, Toulouse, France.
Masbernat, Lucien; University of Toulouse, National Polytechnic Institute of Toulouse, Institute of Fluid Mechanics, Toulouse, France.
Uncontrolled Keywords:floods, hydrodynamics, sediment transport, modelling, river morphology
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:64
Number:1
Page Range:pp. 56-66
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:8632
Item Type:Article
Deposited On:16 Feb 2016 11:48
Last Modified:16 Feb 2016 10:48

Citation

Gharbi, Mohamed; Soualmia, Amel; Dartus, Denis; Masbernat, Lucien (2016) Floods effects on rivers morphological changes application to the Medjerda River in Tunisia. Journal of Hydrology and Hydromechanics, 64 (1). pp. 56-66. ISSN 0042-790X

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