Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates

This paper investigates the river flowrate at two branches of bifurcated river. The mathematical model fro m the literature is formulated based on momentum principle and mass continuity to cope with river flowrate at different bifurcation angles. The hydraulic variables, geometric properties of trap...

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Main Authors: Zawawi, I.S.M., Abdullah, N.L., Aris, H., Jaafar, B.A., Norwaza, N.A.H., Mohd Yunos, M.H.F.
Format: Article
Language:English
Published: 2020
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spelling my.uniten.dspace-127582020-07-07T06:52:56Z Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates Zawawi, I.S.M. Abdullah, N.L. Aris, H. Jaafar, B.A. Norwaza, N.A.H. Mohd Yunos, M.H.F. This paper investigates the river flowrate at two branches of bifurcated river. The mathematical model fro m the literature is formulated based on momentum principle and mass continuity to cope with river flowrate at different bifurcation angles. The hydraulic variables, geometric properties of trapezoidal cross-sectional river and other physical characteristics of bifurcated river are provided, which may be assumed to be given beforehand for practical applications. An example of river bifurcation problem is given by UTM Centre for Industrial and Applied Mathematics (UTM-CIAM), Universiti Teknologi Malaysia. Maple software is used to implement the proposed model equation and generate the results. The amount of bifurcated river flowrate with different bifurcation angles is determined, resulting in a reasonable discussion. It is shown that for specific bifurcation angles, the river flowrates after the bifurcated junction are less than the critical flowrate. Finally, the results of applied problem indicate that the right-angled river bifurcation would be preferable to mitigate flood. © 2019 by authors, all rights reserved. 2020-02-03T03:26:32Z 2020-02-03T03:26:32Z 2019 Article 10.13189/cea.2019.071406 en
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
language English
description This paper investigates the river flowrate at two branches of bifurcated river. The mathematical model fro m the literature is formulated based on momentum principle and mass continuity to cope with river flowrate at different bifurcation angles. The hydraulic variables, geometric properties of trapezoidal cross-sectional river and other physical characteristics of bifurcated river are provided, which may be assumed to be given beforehand for practical applications. An example of river bifurcation problem is given by UTM Centre for Industrial and Applied Mathematics (UTM-CIAM), Universiti Teknologi Malaysia. Maple software is used to implement the proposed model equation and generate the results. The amount of bifurcated river flowrate with different bifurcation angles is determined, resulting in a reasonable discussion. It is shown that for specific bifurcation angles, the river flowrates after the bifurcated junction are less than the critical flowrate. Finally, the results of applied problem indicate that the right-angled river bifurcation would be preferable to mitigate flood. © 2019 by authors, all rights reserved.
format Article
author Zawawi, I.S.M.
Abdullah, N.L.
Aris, H.
Jaafar, B.A.
Norwaza, N.A.H.
Mohd Yunos, M.H.F.
spellingShingle Zawawi, I.S.M.
Abdullah, N.L.
Aris, H.
Jaafar, B.A.
Norwaza, N.A.H.
Mohd Yunos, M.H.F.
Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates
author_facet Zawawi, I.S.M.
Abdullah, N.L.
Aris, H.
Jaafar, B.A.
Norwaza, N.A.H.
Mohd Yunos, M.H.F.
author_sort Zawawi, I.S.M.
title Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates
title_short Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates
title_full Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates
title_fullStr Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates
title_full_unstemmed Mathematical modeling for flood mitigation: Effect of bifurcation angles in river flowrates
title_sort mathematical modeling for flood mitigation: effect of bifurcation angles in river flowrates
publishDate 2020
_version_ 1672614172225961984
score 13.214268