IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 7: Hydroinformatics : Modeling and simulations of flow pattern and chlorine distribution in a potable water service reserv...
Modeling and simulations of flow pattern and chlorine distribution in a potable water service reservoir of singapore
Author : J.M. Zhang, H.P. Lee, B.C. Khoo, C.P. Teo, N. Haja and K.Q. Peng
The existing reported numerical studies of service reservoir are fairly limited to steady flow simulations with a fixed water level. To overcome the challenge of tracking water level variations for dynamic service condition, both multiphase analysis and dynamic mesh methods are implemented in this study for turn over service condition. The results of multiphase analysis verify that the sloshing effect is minimal. It is therefore valid to assume that the water-air interface would remain as a horizontal plane. The dynamic mesh method is then used to track the water level variations with reduced computational cost. The predicted chlorine concentration at the outlet matches well with that of on-site measurement. The second simulation case studies the flow and chlorine concentration distribution under a common service condition. It reveals short-circuiting pattern of the flow. The subsequent formation of dead zones implies poor lateral and moderate vertical mixings, which result in nonuniform chlorine concentration in the service reservoir.
File Size : 578,441 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 7: Hydroinformatics
Date Published : 01/07/2011
Download Now