Wind Shielding Impacts on Water Quality in an Urban Reservoir
| Autor: | Haiyan Miao, Zikun Xing, Jörg Imberger, Lloyd H.C. Chua, Peipei Yang |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Hydrogeology Richardson number business.industry 010604 marine biology & hydrobiology Stratification (water) Computational fluid dynamics Vorticity Atmospheric sciences 010603 evolutionary biology 01 natural sciences Water resources Electromagnetic shielding Environmental science Water quality business Physics::Atmospheric and Oceanic Physics Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Water Resources Management. 32:3549-3561 |
| ISSN: | 1573-1650 0920-4741 |
| DOI: | 10.1007/s11269-018-1980-y |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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