Brine discharges in coastal water

A comprehensive experimental investigation for an inclined 45° dense jet in coflow ambient was carried out under a wide range of jet densimetric Froude number Fr and nominal Froude number NFr. The mixing behavior of the inclined 45° dense jet was observed. Planer Laser Induced Fluorescence (PLIF) wa...

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Main Author: Yap, Wai Lei
Other Authors: Law Wing-Keung, Adrian
Format: Final Year Project
Language:English
Published: 2015
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Online Access:http://hdl.handle.net/10356/63766
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-637662023-03-03T17:15:55Z Brine discharges in coastal water Yap, Wai Lei Law Wing-Keung, Adrian School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Water resources A comprehensive experimental investigation for an inclined 45° dense jet in coflow ambient was carried out under a wide range of jet densimetric Froude number Fr and nominal Froude number NFr. The mixing behavior of the inclined 45° dense jet was observed. Planer Laser Induced Fluorescence (PLIF) was adopted as the measurement for the concentration field of the inclined dense jet. Based on the experimental results, the geometrical characteristics of the inclined dense jet were quantified. Normalized expressions for centerline peak height Zm/FrD, horizontal displacement of centerline peak point Xm/FrD and centerline peak dilution Sm/Fr were derived. Besides that, jet spread and concentration decay rate cm were also reported. Additional experiments involved different discharge nozzle diameters and different densities were conducted to examine their influence to the mixing of the inclined 45° dense jet. Two mixing regimes were identified, namely jet-dominated regime and coflow-dominated regime. The results show that even though Zm/FrD, Xm/FrD and Sm/Fr are influenced by NFr in coflow-dominated regime, they are independent of NFr in jet-dominated regime. Fr and NFr were found to have limited influence on the dimensionless cross-sectional concentration distribution and rate of concentration decay. Vertical spread of the inclined 45° dense jet can be restrained with large NFr. Bachelor of Engineering (Civil) 2015-05-19T02:23:54Z 2015-05-19T02:23:54Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/63766 en Nanyang Technological University 45 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Civil engineering::Water resources
spellingShingle DRNTU::Engineering::Civil engineering::Water resources
Yap, Wai Lei
Brine discharges in coastal water
description A comprehensive experimental investigation for an inclined 45° dense jet in coflow ambient was carried out under a wide range of jet densimetric Froude number Fr and nominal Froude number NFr. The mixing behavior of the inclined 45° dense jet was observed. Planer Laser Induced Fluorescence (PLIF) was adopted as the measurement for the concentration field of the inclined dense jet. Based on the experimental results, the geometrical characteristics of the inclined dense jet were quantified. Normalized expressions for centerline peak height Zm/FrD, horizontal displacement of centerline peak point Xm/FrD and centerline peak dilution Sm/Fr were derived. Besides that, jet spread and concentration decay rate cm were also reported. Additional experiments involved different discharge nozzle diameters and different densities were conducted to examine their influence to the mixing of the inclined 45° dense jet. Two mixing regimes were identified, namely jet-dominated regime and coflow-dominated regime. The results show that even though Zm/FrD, Xm/FrD and Sm/Fr are influenced by NFr in coflow-dominated regime, they are independent of NFr in jet-dominated regime. Fr and NFr were found to have limited influence on the dimensionless cross-sectional concentration distribution and rate of concentration decay. Vertical spread of the inclined 45° dense jet can be restrained with large NFr.
author2 Law Wing-Keung, Adrian
author_facet Law Wing-Keung, Adrian
Yap, Wai Lei
format Final Year Project
author Yap, Wai Lei
author_sort Yap, Wai Lei
title Brine discharges in coastal water
title_short Brine discharges in coastal water
title_full Brine discharges in coastal water
title_fullStr Brine discharges in coastal water
title_full_unstemmed Brine discharges in coastal water
title_sort brine discharges in coastal water
publishDate 2015
url http://hdl.handle.net/10356/63766
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