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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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 |
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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 |
_version_ |
1759853421985267712 |