Chapter
Apr 26, 2012
Atmospheric Reaeration in Open Channel Flow
Authors: Xiaobo Chao [email protected], Yafei Jia [email protected], and Sam S. Y. Wang [email protected]Author Affiliations
Publication: World Environmental and Water Resources Congress 2007: Restoring Our Natural Habitat
Abstract
Based on the surface renewal model and Moog and Jirka's study, the oxygen transfer coefficient can be related to the turbulent energy dissipation rate near the water surface. Following this approach, two new formulas were derived to calculate the oxygen transfer coefficient in open channel flow. In these two formulas, the oxygen transfer coefficients were calculated using water depth and surface velocity or depth-averaged velocity. Good agreements were observed by comparing these two formulas with the experimental data obtained from open channel flow without any wind effects. These newly proposed formulas can be adopted in two-dimensional or three-dimensional water quality models to calculate the oxygen reaeration rates.
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Published In
World Environmental and Water Resources Congress 2007: Restoring Our Natural Habitat
Pages: 1 - 10
Copyright
© 2007 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Research Scientist, National Center for Computational Hydroscience and Engineering, University of Mississippi, Carrier Hall 102, University, MS 38677;. E-mail: [email protected]
Research Professor, National Center for Computational Hydroscience and Engineering, University of Mississippi, Carrier Hall 102, University, MS 38677;. E-mail: [email protected]
F.A.P.Barnard Distinguished Professor and Director, National Center for Computational Hydroscience and Engineering, University of Mississippi, Carrier Hall 102, University, MS 38677;. E-mail: [email protected]
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