Stepped Spillway Flows and Air Entrainment

Chanson, Hubert (1993) Stepped Spillway Flows and Air Entrainment. Canadian Journal of Civil Engineering, 20 3: 422-435. doi:10.1139/l93-057

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Author Chanson, Hubert
Title Stepped Spillway Flows and Air Entrainment
Journal name Canadian Journal of Civil Engineering   Check publisher's open access policy
ISSN 0315-1468
Publication date 1993-06-01
Sub-type Article (original research)
DOI 10.1139/l93-057
Open Access Status File (Author Post-print)
Volume 20
Issue 3
Start page 422
End page 435
Total pages 14
Language eng
Subject 291100 Environmental Engineering
290802 Water and Sanitary Engineering
290800 Civil Engineering
Abstract Stepped spillways have become a popular method for handling flood releases. The steps increase significantly the rate of energy dissipation taking place on the spillway face and reduce the size of the required downstream energy dissipation basin. The compatibility of stepped spillways with roller compacted concrete (RCC) and gabion construction techniques results in low additional cost for the spillway. This paper presents a review of recent developments for the design of stepped spillways, provides a discussion of the effects of air entrainment, and presents new calculation methods that take into account the effects of flow aeration on the flow characteristics and the rate of energy dissipation.
Keyword stepped spillway
air entrainment
energy dissipation
flow resistance
drag reduction
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes CHANSON, H. (1993). "Stepped Spillway Flows and Air Entrainment." Can. Jl of Civil Eng., Vol. 20, No. 3, June, pp. 422-435 (ISSN 0315-1468). Copyright 1993 NRC Research Press. All rights reserved. No part of this publication may be reproduced, stored, or transmitted in any form or by any means, without the written permission of the publisher, except as stated below. The National Research Council of Canada grants permission to individuals to download or print single copies of articles for personal use. Any person may reproduce short excerpts from articles in the journals for any purpose that respects the moral rights of authors, provided that the source is fully acknowledged. As a courtesy, the consent of authors of such material should be obtained directly from the author. Authorization to reproduce items for other than personal use, as stated above, is granted by the National Research Council of Canada provided that the copyright fee of $7.00 per copy is paid directly to CANCOPY, One Yonge Street, Suite 1900, Toronto, ON, Canada M5E 1E5. The above permission does not extend to other kinds of copying, such as copying for general distribution, for advertising, or promotional purposes, for creating new collective works, or for resale. For such copying, arrangements must be made with the publisher, National Research Council of Canada, Ottawa, ON K1A 0R6, Canada. For British Crown copyright articles, permission for other than private research, study or in-house use must be obtained from The Copyright Unit, St. Clemens House, 2-16 Colegate, Norwich, England NR3 1BQ.

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Civil Engineering Publications
 
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Created: Wed, 19 Oct 2005, 10:00:00 EST by Hubert Chanson