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 : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Flow resistance and turbulent structure in an open channel with longitudinally continuous side cavit...
Flow resistance and turbulent structure in an open channel with longitudinally continuous side cavities
Author : TAKAYUKI TANAKA(1), TERUNORI OHMOTO(2)
ABSTRACT
The cavity zone along riverside is expected to produce native habitats of various ecosystems and water-friendly
environment. However, effects of side cavities on flow resistance and turbulent flow structures are ambiguous, because
the side cavity generates the complex separated vortices. In this paper, the flow resistance and turbulent flow structure in
open channel flow with longitudinally continuous side cavities were examined experimentally. The water-surface
fluctuations and flow velocity were measured by using ultrasonic wave and particle-image-velocimetry (PIV) respectively.
Results showed that the flow resistance significantly depended on aspect ratio of side cavity and the reason could be
explained by the difference of water surface oscillation mode and momentum transport through the interface between the
side cavity and main flow region
File Size : 858,609 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 28/08/2015
Download Now