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.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 4: Responding to Shifting Water Resources : Drag coefficients of bodies in aerated flows on stepped channels
Drag coefficients of bodies in aerated flows on stepped channels
Author : M. Takahashi1 and I. Ohtsu1
Drag coefficients of bodies in aerated flows have not yet been shown clearly. For design purposes, it is necessary to clarify the drag force acting on various bodies in high-speed aerated flows, such as baffle piers on chutes, or boulders in mountain rivers. Also, it is significant to know the drag force acting on human legs in aerated flows, because of the refuge from floodwaters entering the staircase between the ground and underground spaces in an urban area. In this paper, the general expression for the drag coefficient of various bodies in aerated flows is reasonably established on the basis of flow characteristics of aerated flows. Also, in stepped channels, drag coefficients of various cylindrical bodies and a model leg are obtained from aerated flow characteristics.
File Size : 884,761 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
Download Now