IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : PIV Measurements of Fluid and Particle Velocity Fields of a Sediment-Laden Buoyant Jet
PIV Measurements of Fluid and Particle Velocity Fields of a Sediment-Laden Buoyant Jet
Author : Peng Liu and Kit Ming Lam
A horizontally discharging buoyant jet laden with sediment particles is studied by two-phase PIV. It is observed that buoyancy takes the main role of governing the flow mechanisms in the bending zone, where the locations of maximum velocity magnitude and those of maximum turbulence intensity become separated. Notably, particle abundance and high turbulence intensity coincidently reside in the lower outer layer in this zone. In the momentum-dominated zone, the action of buoyancy changes the cross-sectional profiles of fluid velocity and the jet trajectory is slightly bent upwards from the initial horizontal direction. Turbulence inside the jet plays the role of reducing the settling velocity of the particles and particle suspension.
File Size : 566,810 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 4 - HYDRO-ENVIRONMENT
Date Published : 18/07/2016
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