Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir

In this study, DYnamic REServoir Simulation Model (DYRESM), a one-dimensional model was calibrated to allow the prediction of vertical distribution of temperature. The simulation was done using data collected on site from Kranji Reservoir over a period of 253 days, from 21 September 2011 to...

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Main Author: Ng, Guo Hong.
Other Authors: Lo Yat-Man, Edmond
Format: Final Year Project
Language:English
Published: 2013
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Online Access:http://hdl.handle.net/10356/53378
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-533782023-03-03T17:04:32Z Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir Ng, Guo Hong. Lo Yat-Man, Edmond School of Civil and Environmental Engineering DRNTU::Engineering In this study, DYnamic REServoir Simulation Model (DYRESM), a one-dimensional model was calibrated to allow the prediction of vertical distribution of temperature. The simulation was done using data collected on site from Kranji Reservoir over a period of 253 days, from 21 September 2011 to 30 May 2012. The thermal structure and variability in Kranji reservoir, which were affected by the North East Monsoon, were explored. Lower air temperature and higher frequency of strong winds were measured during that period. These conditions destabilized the water column and encouraged mixing, and resulted in more days with lower surface temperature. The meteorological characteristics of days that produce the maximum and minimum vertical thermal stratification (ΔT) were investigated. With a better understanding of the environmental system and relationships, the DYRESM model was first run using a 2 months preliminary calibration data obtained from an earlier study in 2007 on Kranji reservoir. It was found that the mixing capability of the model was overestimated. Further analysis was done in this FYP to find the dominant parameter. To calibrate a better model, trial and error simulations on the parameter were done. This study showed that with proper calibration, it is possible to come up with a model that gives good approximation under most meteorological conditions. Bachelor of Engineering (Civil) 2013-06-03T02:07:18Z 2013-06-03T02:07:18Z 2013 2013 Final Year Project (FYP) http://hdl.handle.net/10356/53378 en Nanyang Technological University 52 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
spellingShingle DRNTU::Engineering
Ng, Guo Hong.
Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir
description In this study, DYnamic REServoir Simulation Model (DYRESM), a one-dimensional model was calibrated to allow the prediction of vertical distribution of temperature. The simulation was done using data collected on site from Kranji Reservoir over a period of 253 days, from 21 September 2011 to 30 May 2012. The thermal structure and variability in Kranji reservoir, which were affected by the North East Monsoon, were explored. Lower air temperature and higher frequency of strong winds were measured during that period. These conditions destabilized the water column and encouraged mixing, and resulted in more days with lower surface temperature. The meteorological characteristics of days that produce the maximum and minimum vertical thermal stratification (ΔT) were investigated. With a better understanding of the environmental system and relationships, the DYRESM model was first run using a 2 months preliminary calibration data obtained from an earlier study in 2007 on Kranji reservoir. It was found that the mixing capability of the model was overestimated. Further analysis was done in this FYP to find the dominant parameter. To calibrate a better model, trial and error simulations on the parameter were done. This study showed that with proper calibration, it is possible to come up with a model that gives good approximation under most meteorological conditions.
author2 Lo Yat-Man, Edmond
author_facet Lo Yat-Man, Edmond
Ng, Guo Hong.
format Final Year Project
author Ng, Guo Hong.
author_sort Ng, Guo Hong.
title Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir
title_short Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir
title_full Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir
title_fullStr Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir
title_full_unstemmed Analysis of hydrodynamic (flow) and thermal patterns in Kranji reservoir
title_sort analysis of hydrodynamic (flow) and thermal patterns in kranji reservoir
publishDate 2013
url http://hdl.handle.net/10356/53378
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