Effect of hydrodynamic characteristics on reaeration process

Article type: Research Article

Authors: Li, Ran | Luo, Lin | Fu, Xiao-ying | Huang, Wen-dian

Affiliations: The State Key Hydraulics Laboratory of High Speed Flows,Siehuan University,Chengdu 610065,China, E-mail:liranban @ mail.china.com

Abstract: The equilibrium-perturb technique was used in the flume reaeration experiment.The inteffaeial mass transfer coefficients of DO were obtained by implementation of the oxygen-flux theory in the study.The turbulence characteristics of the flow field were investigated by numerical simulation approach.The expression of inteffacial mess transfer coefficient related with velocity and turbulence kinetic energy was built.Examination with the experimental datum of different cases showed the validation of the expression.

Keywords: reaeration, hydrodynamic characteristics

Journal: Journal of Environmental Sciences, vol. 14, no. 3, pp. 393-398, 2002