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 : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Time resolved piv analysis of the initial stages of the dam break
Time resolved piv analysis of the initial stages of the dam break
Author : R. Aleixo
With the development of algorithms allowing the extraction of quantitative information from flow images, namely Particle Image Velocimetry (PIV) and Particle Tracking Velocimetry (PTV), imaging techniques have evolved from merely visualization tools to powerful measurement techniques. With these techniques, two or even three components of the whole velocity field can be measured in a non intrusive way. A field of application of imaging techniques certainly concerns transient flow phenomena, and among them dam-break flows. In this paper the initial stages of a onedimensional dam break flow over a bed of idealized sediments (PVC pellets) were studied using a fast camera with an acquisition frequency up to 1000 frames per second. Using the fast acquisiton camera a statistical analysis of the dam-break flow after the dam-break wave collapse is also presented.
File Size : 7,100,278 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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