Modeling of bubble plume design and oxygen transfer for reservoir restoration.
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.
Sahoo
Goloka Behari
GB
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
Luketina
David
D
D005740:Gases; D008962:Models, Theoretical; D014872:Water Movements; D014881:Water Supply
D005740:Gases