title: Modeling of bubble plume design and oxygen transfer for reservoir restoration.
abstract: A one-dimensional bubble plume model is described to predict the gaseous mass transfer of air bubbles into ambient water and the appropriate design criteria of a bubbler for a linearly stratified reservoir. The bubble plume behavior is governed by two dimensionless parameters: G, the strength of stratification, and M, the source strength (via airflow rate). Mechanical efficiency, an indicator of bubbler operating cost; the rate of plume entrainment flux, an indicator of mixing effectiveness; and the oxygen dissolution efficiency are analyzed as functions of G and M for different air bubble sizes to describe optimum bubbler design conditions. A bubble radius close to 1 mm is recommended as it favors higher mechanical efficiency and oxygen dissolution efficiency.
authors.affiliation: Water Engineering and Management Program, School of Civil Engineering, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani 12120, Thailand. iwc999897@ait.ac.th
authors.forename: Goloka Behari
authors.initials: GB
authors.lastname: Sahoo
authors.forename: David
authors.initials: D
authors.lastname: Luketina
mesh_terms: D005740:Gases; D008962:Models, Theoretical; D014872:Water Movements; D014881:Water Supply
chemical_list: D005740:Gases