Investigation on the Dimensions and Shape of a Submerged Vane for Sediment Management in Alluvial Channels
Publication: Journal of Hydraulic Engineering
Volume 135, Issue 3
Abstract
A submerged vane is a flow-training facility mounted vertically on the channel bed to control the sediment movement in the channel cross section, and has been utilized in various applications, such as prevention of bank erosion, sediment exclusion at water intakes, and deepening channels for navigation. The performance of a submerged vane is related to its dimensions and shape. This study aims to investigate a vane’s sediment control effectiveness as a function of its size and shape, with the expectation of an optimal combination of dimensions and shape. A model for the calculation of the transverse bed profile in a cross section of a straight alluvial channel induced by a single submerged vane is developed. The model is utilized to investigate the performances for three types of vanes: (1) rectangular plates with various height and length; (2) tapered plates with linear decreasing in length from the base to the top; and (3) plates of parallelogram with the top of the plates swept forward or backward. Design guidelines and suggestions on the dimensions and shape of the vane are provided based on the results.
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Acknowledgments
This material is based upon work supported by the National Science Council or Taiwan under Grant No. NSC NSCT95-2221-E-197-009. The writer also wishes to express sincere gratitude to the editors and the reviewers for their helpful comments.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 135 • Issue 3 • March 2009
Pages: 209 - 217
Copyright
© 2009 ASCE.
History
Received: Jul 5, 2007
Accepted: Sep 6, 2008
Published online: Mar 1, 2009
Published in print: Mar 2009
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