Comparisons with the experimental results show that proposed equations provide accurate predictions, especially when the momentum ratio of ambient current to the effluent discharge is large. The theoretical approaches proposed in this study give better explanations to the dilution behavior of the four diffusers for complete range of the momentum ratio. About the Speaker Assoc Prof Seo is currently teaching in the Department of Civil Engineering, Seoul National University, Korea. Prof Seo has won many awards including the American Water Resources Association Best Student Paper Award in 1990, and the Korea Water Resources Association Special Achievement Award in 1997 and Best Paper Award in 1999. His research interests are in the areas of dispersion in rivers and mixing of turbulent jets and plumes.
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