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Semi-2D modeling of river morphological changes caused by exceptional flooding

Tew-Fik Mahdi

Paper (2017)

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Abstract

This paper presents the application of the model, MHYSER 1.0 (Model for the HYdraulics of SEdiments in Rivers, version 1.0), to study river morphological changes due to exceptional flooding. MHYSER 1.0 is a semi-two-dimensional model using the stream tubes concept to achieve lateral variations of velocity, flow stresses and sediment transport rate. Each stream tube has the same conveyance as the other ones. In MHYSER 1.0, the uncoupled approach is used to solve the set of conservation equations'. After the backwater calculation, the river is divided in a finite number of stream tubes of equal conveyances. The sediment routing and bed adjustments calculations are accomplished separately along each stream tube taking into account lateral mass exchanges. MHYSER 1.0 is applied to the Ha! Ha! River (Quebec, Canada), a tributary of the Saguenay River, for the 1996 “downpour“. The results show good correlation of with collected data. This application shows the capabilities of this model and predicts its promising role in solving complex real engineering cases.

Subjects: 1000 Civil engineering > 1006 Hydrologic engineering
Department: Department of Civil, Geological and Mining Engineering
Funders: National Science and Engineering research Council of Canada (NSERC)
Grant number: RGPIN-2016-06413
PolyPublie URL: https://publications.polymtl.ca/5134/
Conference Title: International Conference on Advances in Sustainable Construction Materials & Civil Engineering Systems (ASCMCES 2017)
Conference Location: University of Sharjah, United Arab Emirates
Conference Date(s): 2017-04-18 - 2017-04-20
Editors: Abdallah Shanableh, Mohamed Maalej, Samer Barakat, Maher Omar, Salah Al-Toubat, Rami Al-Ruzouq and Khaled Hamad
Journal Title: MATEC Web of Conferences (vol. 120)
Publisher: EDP Sciences
DOI: 10.1051/matecconf/201712005008
Official URL: https://doi.org/10.1051/matecconf/201712005008
Date Deposited: 24 Feb 2023 14:51
Last Modified: 19 Oct 2023 18:27
Cite in APA 7: Mahdi, T.-F. (2017, April). Semi-2D modeling of river morphological changes caused by exceptional flooding [Paper]. International Conference on Advances in Sustainable Construction Materials & Civil Engineering Systems (ASCMCES 2017), University of Sharjah, United Arab Emirates (8 pages). Published in MATEC Web of Conferences, 120. https://doi.org/10.1051/matecconf/201712005008

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