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dc.contributor.authorGupta U.P.-
dc.contributor.authorOjha, C. S. P.-
dc.contributor.authorSharma N.-
dc.identifier.citationJournal of Hydraulic Engineering(2010), 136(9): 651-655-
dc.description.abstractSubmerged vanes are submerged foils of low height and larger length, constructed in a river at an angle of attack ? to the flow to modify the near-bed flow pattern and redistribute flow and sediment transport within the channel cross section. At a Froude number (F) of 0.13, the local scour development around the submerged vane without a collar was not enough to dislodge the vane whereas at F=0.25, there was a significant local scour hole around the vane and the vane was dislodged. With the introduction of a collar at the leading edge of a submerged vane, the scour depth at the leading edge of the vane was reduced to zero. A collar of circular shape was found more suitable for a rectangular vane. Recommendations for sizing collars at two values of F are given. The optimal ? for a rectangular vane with a collar was found close to 40°. The study clearly indicates the advantages of using collars in case of submerged vanes and provides insight into selection of appropriate collar shapes. © 2010 ASCE.-
dc.relation.ispartofJournal of Hydraulic Engineering-
dc.subjectFroude number-
dc.subjectSediment transport-
dc.titleEnhancing utility of submerged vanes with collar-
dc.affiliationGupta, U.P., Central Water Commission, R.K. Puram, New Delhi, India-
dc.affiliationOjha, C.S.P., Dept. of Civil Engineering, Indian Institute of Technology, Roorkee, India-
dc.affiliationSharma, N., Dept. of WRD and M, Indian Institute of Technology, Roorkee, India-
dc.description.correspondingauthorGupta, U.P.; Central Water Commission, R.K. Puram, New Delhi, India-
Appears in Collections:Journal Publications [CE]

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