An experimental investigation of the aeration performance of parshall flume and venturi flumes

Parshall flumes are commonly used in irrigation systems, storm water systems, and sewer systems in order to measure the flow rate. The dissolved oxygen content in surface waters is a main indicator of the quality of that water for human use as well as use by the aquatic plant and animal life. A high...

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Bibliographic Details
Published in:KSCE journal of civil engineering 2016, 20(2), , pp.943-950
Main Author: Dursun, O. Faruk
Format: Article
Language:English
Subjects:
Aeration
Air bubbles
Air entrainment
Aquatic animals
Aquatic plants
Channels
Civil Engineering
Dissolution
Dissolved oxygen
Engineering
Flow rates
Flumes
Geotechnical Engineering & Applied Earth Sciences
Hydraulic structures
Industrial Pollution Prevention
Irrigation systems
Irrigation water
Oxygen
Oxygen content
Oxygen transfer
Sewer systems
Storms
Stormwater
Surface water
Throats
Water Engineering
Water quality
Water surface profiles
토목공학
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Summary:Parshall flumes are commonly used in irrigation systems, storm water systems, and sewer systems in order to measure the flow rate. The dissolved oxygen content in surface waters is a main indicator of the quality of that water for human use as well as use by the aquatic plant and animal life. A higher dissolved oxygen content supplies better water quality. Hydraulic structures can increase dissolved oxygen ratios by causing turbulent fluctuations during which air bubbles entrain the bulk of the flow. This present study focuses on determining the aeration efficiency of a small 3 inch Parshall flume and Modified Venturi flumes from this Parshall flume, in particular the effect of varying throat width, throat length and sill height. The experiments were conducted for 26 different Modified Venturi flumes and 1 Parshall flume. In the study, the water surface profiles and aeration efficiencies of the flumes are determined. The results indicate that Parshall and Venturi flumes are effective for oxygen transfer for channels having zero or highly low slopes. In addition, more studies are needed to find the best efficient system for horizontal channels.
ISSN:1226-7988
1976-3808
DOI:10.1007/s12205-015-0645-0