Experimental study on oxygen transfer capacity of water jets discharging into turbulent cross-flow
Abstract
Plunging water jets are used for oxygenation purposes due to their inherent advantages such as simplicity, energy efficiency, and low operational cost. Specifically, these provide an efficient gas-liquid interfacial area for dissolving oxygen in water. Oxygen transfer by plunging jets into stagnant water has received considerable attention; however, the oxygenation capacity of plunging water jets discharging into turbulent cross-flow has received limited attention. The flow characteristics such as volumetric oxygen transfer coefficient and standard oxygen transfer efficiency are evaluated considering water jet to cross-flow velocity ratio, jet fall height, cross-flow depth, and jet impact angle. Two equations are proposed for estimating the oxygen transfer rate for a single plunging jet in a turbulent cross-flow. Moreover, the dynamic behavior of the resulting two-phase air-water flow is investigated with the aid of flow visualization.
Document Type
Journal Article
Date of Publication
2017
Publication Title
Journal of Environmental Engineering
Publisher
ASCE
School
School of Engineering
RAS ID
24077
Copyright
subscription content
Comments
Jahromi, M. E., & Khiadani, M. (2017). Experimental study on oxygen transfer capacity of water jets discharging into turbulent cross-flow. Journal of Environmental Engineering, 143(6), article 04017007. https://doi.org/10.1061/(ASCE)EE.1943-7870.0001194