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Experimental Study on the Air Concentration Distribution of Aerated Jet Flows in a Plunge Pool
- Source :
- Water, Volume 10, Issue 12, Water, Vol 10, Iss 12, p 1779 (2018)
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- There is a lack of knowledge on the air concentration distribution in plunge pools affected by aerated jets. A set of physical experiments was performed on vertical submerged aerated jet flows impinging a plunge pool. The air concentration distribution in the plunge pool was analyzed under different inflow air concentrations, flow velocities, and discharge rate conditions. The experimental results show that the air concentration distribution follows a power-law along the jet axis, and it is independent of the initial flow conditions. A new hypothetical analysis model was proposed for air diffusion in the plunge pool, that is, the air concentration distribution in the plunge pool is superposed by the lateral diffusion of three stages of the aerated jet motion. A set of formulas was proposed to predict the air concentration distribution in the plunge pool, the results of which showed good agreement with the experimental data.
- Subjects :
- lcsh:Hydraulic engineering
aerated flow
submerged jets
0208 environmental biotechnology
Geography, Planning and Development
Flow (psychology)
02 engineering and technology
Inflow
Aquatic Science
01 natural sciences
Biochemistry
010305 fluids & plasmas
lcsh:Water supply for domestic and industrial purposes
lcsh:TC1-978
0103 physical sciences
Diffusion (business)
Plunge pool
Water Science and Technology
lcsh:TD201-500
Jet (fluid)
Mechanics
020801 environmental engineering
Flow conditions
Air concentration
air concentration
Environmental science
plunge pool
Aeration
Subjects
Details
- ISSN :
- 20734441
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Water
- Accession number :
- edsair.doi.dedup.....308474458c5e5786f92080d8c40cdf4b