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Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d

The Artificial Riffle Structures (ARS) is one of the many methods used in river rehabilitation projects. ARS provides various advantages such as creating complex habitats, regulating water temperature and increasing dissolved oxygen (DO) level in water. DO level can be increased in water by increasi...

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Main Author: Khor, Hao Zhe
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2021
Subjects:
T Technology
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.usm.my/56985/1/Numerical%20Modelling%20Of%20Air%20Bubbles%20In%20Artificial%20Riffle%20Zone%20Using%20Flow-3d.pdf
http://eprints.usm.my/56985/
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spelling my.usm.eprints.56985 http://eprints.usm.my/56985/ Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d Khor, Hao Zhe T Technology TA Engineering (General). Civil engineering (General) The Artificial Riffle Structures (ARS) is one of the many methods used in river rehabilitation projects. ARS provides various advantages such as creating complex habitats, regulating water temperature and increasing dissolved oxygen (DO) level in water. DO level can be increased in water by increasing the life-time of air bubbles and entrained air volume. This study serves to investigate the effect of surface shape of ARS unit and arrangement of ARS units in increasing DO level in water. The performance of the ARS in increasing the life-time of air bubble and entrained air volume under three different surface shapes of ARS unit i.e. the flat, pyramid and sphere surface and two different arrangements of ARS were investigated in this study. The three-dimensional (3D) model of each arrangement with different surface shape of ARS unit were produced using the AutoCAD-3D. A commercial computational fluid dynamics (CFD) software, i.e. the Flow-3D, was used to simulate the flow over the ARS zone. From the results obtained, the ARS unit with the sphere shaped surface and the second type of ARS arrangement produced the highest life-time of air bubbles of and entrained air volume. The highest life-time of air bubbles obtained was 9.459s and highest entrained air volume obtained was 0.108024 m3. Universiti Sains Malaysia 2021-08-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/56985/1/Numerical%20Modelling%20Of%20Air%20Bubbles%20In%20Artificial%20Riffle%20Zone%20Using%20Flow-3d.pdf Khor, Hao Zhe (2021) Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Awam. (Submitted)
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology
TA Engineering (General). Civil engineering (General)
Khor, Hao Zhe
Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d
description The Artificial Riffle Structures (ARS) is one of the many methods used in river rehabilitation projects. ARS provides various advantages such as creating complex habitats, regulating water temperature and increasing dissolved oxygen (DO) level in water. DO level can be increased in water by increasing the life-time of air bubbles and entrained air volume. This study serves to investigate the effect of surface shape of ARS unit and arrangement of ARS units in increasing DO level in water. The performance of the ARS in increasing the life-time of air bubble and entrained air volume under three different surface shapes of ARS unit i.e. the flat, pyramid and sphere surface and two different arrangements of ARS were investigated in this study. The three-dimensional (3D) model of each arrangement with different surface shape of ARS unit were produced using the AutoCAD-3D. A commercial computational fluid dynamics (CFD) software, i.e. the Flow-3D, was used to simulate the flow over the ARS zone. From the results obtained, the ARS unit with the sphere shaped surface and the second type of ARS arrangement produced the highest life-time of air bubbles of and entrained air volume. The highest life-time of air bubbles obtained was 9.459s and highest entrained air volume obtained was 0.108024 m3.
format Monograph
author Khor, Hao Zhe
author_facet Khor, Hao Zhe
author_sort Khor, Hao Zhe
title Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d
title_short Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d
title_full Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d
title_fullStr Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d
title_full_unstemmed Numerical Modelling Of Air Bubbles In Artificial Riffle Zone Using Flow-3d
title_sort numerical modelling of air bubbles in artificial riffle zone using flow-3d
publisher Universiti Sains Malaysia
publishDate 2021
url http://eprints.usm.my/56985/1/Numerical%20Modelling%20Of%20Air%20Bubbles%20In%20Artificial%20Riffle%20Zone%20Using%20Flow-3d.pdf
http://eprints.usm.my/56985/
_version_ 1758579161820037120
score 13.211869

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