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 4: Responding to Shifting Water Resources : Evaluation of hydrodynamic force on solidly connected natural stone and proposal of its design metho...
Evaluation of hydrodynamic force on solidly connected natural stone and proposal of its design method
Author : S. Maeno1, K. Kaseguma2 and A. Yamamura2
In recent years, it has become necessary to develop suitable methods for restoring natural rivers. The authors have examined more nature-friendly hydraulic structures made of connected natural stones. Although such structures are excellent in environmental aspects, design standards for such structures have not been established yet because the structures comprise natural stones with various shapes. Furthermore, the design flow velocity is not clarified when the proposed connected natural stones were used as a groin and other hydraulic structures. At present, 1.21.5 times large velocity of the representative mean velocity is used as the design velocity. Therefore, in this study, the hydrodynamic force for solidly connected natural stones, and the velocity field around such structures were examined experimentally. Experimental results clarified not only the hydraulic characteristics of the flow around the groin, but also the drag and lift coefficients of the connected stone. An efficient design method for the solidly connected stone was proposed.
File Size : 1,029,063 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 4: Responding to Shifting Water Resources
Date Published : 01/07/2011
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