Modelling of flood flushing in a tributary constrained by barrages

Mah, D.Y.S. and Putuhena, F.J. and Rosli, N.A (2011) Modelling of flood flushing in a tributary constrained by barrages. World Applied Sciences Journal, 23 (1). pp. 101-108. ISSN 1818-4952

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Abstract

Purpose – Flood flushing is one natural cleansing capability of a natural river channel to wash away in‐stream pollutants and debris. The purpose of this paper is to explore the flood flushing restriction in a tributary due to its regulated main river channel between two barrages. Design/methodology/approach – In the absence of detailed data, a concerted effort of computer river modelling is conceptualized to represent possible flushing conditions. Findings – Regulation schemes of barrages are deduced to interrupt the natural tidal and river flow interaction zones and thus impede river flushing capability. Practical implications – Modelling of barrages’ operating modes suggested that though the man‐made structures are unable to replicate natural flood flushing, proper operations offer a secondary option to achieving the desired water quality objective in a constrained tributary. Originality/value – Studies on minor tributary of modified main‐stem river are few. The attended tributary‐trunk relationships carry the credibility of this paper.

Item Type: Article
Additional Information: Universiti Malaysia Sarawak, (UNIMAS)
Uncontrolled Keywords: River pollution, Hydrodynamics, Water retention and flow works, Pollutant transport, Regulation, River channel, Tidal fluctuation, Water quality, Modelling, UNIMAS, Universiti Malaysia Sarawak, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, IPTA, education
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Depositing User: Karen Kornalius
Date Deposited: 28 May 2014 06:32
Last Modified: 23 Mar 2015 08:25
URI: http://ir.unimas.my/id/eprint/3038

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