Abstract
This study applied an atmospheric Computational Fluid Dynamics (CFD) model and a three-dimensional hydrodynamic-ecological lake model to investigate the impacts of variable wind forcing on lake hydrodynamics and water quality. The CFD model was used to predict the wind field over the lake surface which served as the meteorological forcing for the lake model. The study was carried out for the Marina Reservoir in downtown Singapore where field measurements of the wind field showed that temporal and spatial differences in wind field were found to be significant. By comparing simulations using uniform and spatially variable wind inputs in terms of thermal stratification, Richardson number, vorticity, and spatial gradients, this study demonstrates that the variability in wind forcing in urban lakes that arise from shielding and seasonal effects can have significant impacts on the hydrodynamics and water quality in the reservoir.
| Original language | English |
|---|---|
| Pages (from-to) | 3549-3561 |
| Number of pages | 13 |
| Journal | Water Resources Management |
| Volume | 32 |
| Issue number | 11 |
| Early online date | 21 Jun 2018 |
| DOIs | |
| Publication status | Published - Sep 2018 |
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Wind Shielding Impacts on Water Quality in an Urban Reservoir. / Xing, Zikun; Chua, Lloyd H.C.; Miao, Haiyan; Imberger, Jörg; Yang, Peipei.
In: Water Resources Management, Vol. 32, No. 11, 09.2018, p. 3549-3561.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Wind Shielding Impacts on Water Quality in an Urban Reservoir
AU - Xing, Zikun
AU - Chua, Lloyd H.C.
AU - Miao, Haiyan
AU - Imberger, Jörg
AU - Yang, Peipei
PY - 2018/9
Y1 - 2018/9
N2 - This study applied an atmospheric Computational Fluid Dynamics (CFD) model and a three-dimensional hydrodynamic-ecological lake model to investigate the impacts of variable wind forcing on lake hydrodynamics and water quality. The CFD model was used to predict the wind field over the lake surface which served as the meteorological forcing for the lake model. The study was carried out for the Marina Reservoir in downtown Singapore where field measurements of the wind field showed that temporal and spatial differences in wind field were found to be significant. By comparing simulations using uniform and spatially variable wind inputs in terms of thermal stratification, Richardson number, vorticity, and spatial gradients, this study demonstrates that the variability in wind forcing in urban lakes that arise from shielding and seasonal effects can have significant impacts on the hydrodynamics and water quality in the reservoir.
AB - This study applied an atmospheric Computational Fluid Dynamics (CFD) model and a three-dimensional hydrodynamic-ecological lake model to investigate the impacts of variable wind forcing on lake hydrodynamics and water quality. The CFD model was used to predict the wind field over the lake surface which served as the meteorological forcing for the lake model. The study was carried out for the Marina Reservoir in downtown Singapore where field measurements of the wind field showed that temporal and spatial differences in wind field were found to be significant. By comparing simulations using uniform and spatially variable wind inputs in terms of thermal stratification, Richardson number, vorticity, and spatial gradients, this study demonstrates that the variability in wind forcing in urban lakes that arise from shielding and seasonal effects can have significant impacts on the hydrodynamics and water quality in the reservoir.
KW - Hydrodynamics
KW - Season
KW - Spatially variable wind
KW - Urban Lake
KW - Water quality
KW - Wind shielding
UR - http://www.scopus.com/inward/record.url?scp=85048808237&partnerID=8YFLogxK
U2 - 10.1007/s11269-018-1980-y
DO - 10.1007/s11269-018-1980-y
M3 - Article
VL - 32
SP - 3549
EP - 3561
JO - Water Resources Management
JF - Water Resources Management
SN - 0920-4741
IS - 11
ER -