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 : Effect of air release height on the formation of sediment thermal in water
Effect of air release height on the formation of sediment thermal in water
Author : B. Zhao , A. W. K. Law , E. E. Adams , D. D. Shao , Z. H. Huang
The behaviour of underwater sediment clouds, formed by releasing a cluster of sediment in air at various heights, has been investigated experimentally. The measurements showed that the growth rate of the sediment cloud is independent of the air release height in the thermal phase. Based on measurements results, an integral model was developed to simulate the characteristics of the sediment cloud in this thermal phase. The concepts of virtual distance and time origins were introduced to account for the effect of the release height. Both virtual origins were found to be proportional to the square of a Densimetric Froude number that is formulated in consideration of the impact momentum of the sediment cluster at the water surface and the impulse generated by buoyancy.
File Size : 331,816 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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