Title

Experimental study on oxygen transfer capacity of water jets discharging into turbulent cross-flow

Document Type

Journal Article

Publication Title

Journal of Environmental Engineering

Publisher

ASCE

School

School of Engineering

RAS ID

24077

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

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.

DOI

10.1061/(ASCE)EE.1943-7870.0001194

Access Rights

subscription content

 
COinS