Flow field in scoured zone of cahannel contractions

Raikar, Rajkumar V. ; Dey, Subhasish (2004) Flow field in scoured zone of cahannel contractions International Journal of Sediment Research, 19 (4). pp. 292-311. ISSN 1001-6279

Full text not available from this repository.

Official URL: http://d.wanfangdata.com.cn/periodical_gjnsyj-e200...


Experiments were conducted in a laboratory flume to measure the two-dimensional turbulent flow field in the scoured zone of channel contractions under a clear-water scour condition. The Acoustic Doppler Velocimeter (ADV) was used to detect the flow field at different vertical lines along the centerline of uncontracted (main channel) and contracted zones of the channel. The distributions of time-averaged velocity components, turbulent intensity, turbulent kinetic energy, and Reynolds stresses are presented in nondimensional graphical form. The bed shear stresses are computed from the measured Reynolds stresses being in threshold condition within the zone of contraction where bed was scoured. The data presented in this paper would be useful to the investigators for the development of kinematic flow model and morphological model of scour at a channel or river contraction.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Channel Contraction; Open Channel Flow; Turbulent Flow; Erosion; Scour; Sediment Transport; Fluvial Hydraulics
ID Code:79053
Deposited On:24 Jan 2012 07:34
Last Modified:24 Jan 2012 07:34

Repository Staff Only: item control page