Modelling flow in a fishway using LABSWE

Fishways are designed to provide a canal for fishes to migrate upstream and downstream when there is a presence of natural or man-made obstructions. In designing the fishway, correct prediction and simulation of the flows play a crucial role. A well designed and constructed fishway will provide a pa...

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Main Authors: Sabri, F.N., Shafiai, S.H.
Format: Conference or Workshop Item
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.24628 /
Published: Institute of Physics Publishing 2020
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081306713&doi=10.1088%2f1757-899X%2f736%2f2%2f022092&partnerID=40&md5=c29d78e8ab9c6a2667901bf314f05308
http://eprints.utp.edu.my/24628/
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spelling utp-eprints.246282021-08-27T06:24:12Z Modelling flow in a fishway using LABSWE Sabri, F.N. Shafiai, S.H. Fishways are designed to provide a canal for fishes to migrate upstream and downstream when there is a presence of natural or man-made obstructions. In designing the fishway, correct prediction and simulation of the flows play a crucial role. A well designed and constructed fishway will provide a path that allow fish to continue migrating past the obstructions. This paper presents numerical modelling of flows in fishway using Lattice Boltzmann Method for Shallow Water Equations (LABSWE�) in order to demonstrate its simple applicability and accuracy in solving complex flow problems. Lattice Boltzmann Method (LBM) is an alternative numerical method in solving complex fluid flows problems. LBM was found to be efficient and accurate after series complex shallow water problems have been solved. The flow is simulated by using Bhatnagar-Gross-Kook (BGK) collision term. Lattice Boltzmann equation was derived based on shallow water equations. A D2Q9 model was implemented for a more accurate result. The BGK-LBM equations was coded up in MATLAB and the numerical results yield from LBM were then compared with the numerical results solved using Finite Volume Method (FVM). The result comparison was done on velocity vectors, velocity contour and depth contour. From the result comparison, there is good agreement between LBM and FVM which shows that LBM can mimic the flow perfectly. In fact, LBM yield a more detailed and accurate results. © Published under licence by IOP Publishing Ltd. Institute of Physics Publishing 2020 Conference or Workshop Item NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081306713&doi=10.1088%2f1757-899X%2f736%2f2%2f022092&partnerID=40&md5=c29d78e8ab9c6a2667901bf314f05308 Sabri, F.N. and Shafiai, S.H. (2020) Modelling flow in a fishway using LABSWE. In: UNSPECIFIED. http://eprints.utp.edu.my/24628/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Fishways are designed to provide a canal for fishes to migrate upstream and downstream when there is a presence of natural or man-made obstructions. In designing the fishway, correct prediction and simulation of the flows play a crucial role. A well designed and constructed fishway will provide a path that allow fish to continue migrating past the obstructions. This paper presents numerical modelling of flows in fishway using Lattice Boltzmann Method for Shallow Water Equations (LABSWE�) in order to demonstrate its simple applicability and accuracy in solving complex flow problems. Lattice Boltzmann Method (LBM) is an alternative numerical method in solving complex fluid flows problems. LBM was found to be efficient and accurate after series complex shallow water problems have been solved. The flow is simulated by using Bhatnagar-Gross-Kook (BGK) collision term. Lattice Boltzmann equation was derived based on shallow water equations. A D2Q9 model was implemented for a more accurate result. The BGK-LBM equations was coded up in MATLAB and the numerical results yield from LBM were then compared with the numerical results solved using Finite Volume Method (FVM). The result comparison was done on velocity vectors, velocity contour and depth contour. From the result comparison, there is good agreement between LBM and FVM which shows that LBM can mimic the flow perfectly. In fact, LBM yield a more detailed and accurate results. © Published under licence by IOP Publishing Ltd.
format Conference or Workshop Item
author Sabri, F.N.
Shafiai, S.H.
spellingShingle Sabri, F.N.
Shafiai, S.H.
Modelling flow in a fishway using LABSWE
author_sort Sabri, F.N.
title Modelling flow in a fishway using LABSWE
title_short Modelling flow in a fishway using LABSWE
title_full Modelling flow in a fishway using LABSWE
title_fullStr Modelling flow in a fishway using LABSWE
title_full_unstemmed Modelling flow in a fishway using LABSWE
title_sort modelling flow in a fishway using labswe
publisher Institute of Physics Publishing
publishDate 2020
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081306713&doi=10.1088%2f1757-899X%2f736%2f2%2f022092&partnerID=40&md5=c29d78e8ab9c6a2667901bf314f05308
http://eprints.utp.edu.my/24628/
_version_ 1741196843378802688
score 11.62408

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