Reduction of Cavitation on Spillways by Induced Air Entrainment

Chanson, Hubert (1992) Reduction of Cavitation on Spillways by Induced Air Entrainment. Canadian Journal of Civil Engineering, 20 5: 926-928. doi:10.1139/l92-105

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Author Chanson, Hubert
Title Reduction of Cavitation on Spillways by Induced Air Entrainment
Journal name Canadian Journal of Civil Engineering   Check publisher's open access policy
ISSN 0315-1468
Publication date 1992-10-01
Sub-type Discussion - responses, round table/panel discussions, Q&A, reply
DOI 10.1139/l92-105
Open Access Status File (Author Post-print)
Volume 20
Issue 5
Start page 926
End page 928
Total pages 3
Language eng
Subject 290000 Engineering and Technology
290802 Water and Sanitary Engineering
290800 Civil Engineering
Abstract The writer would like to congratulate the authors for their extensive study on the difficult problems of cavitation damage and the use of aeration device. The writer wishes to discuss three specific points to complete the article : upper nappe entrainment, aerator submergence and velocity effects.
Keyword cavitation damage reduction
air entrainment
bottom aeration devices
drag reduction
aerator submergence
References AIVAZYAN, O.M. (1986). "Stabilized Aeration on Chutes." Gidrotekhnicheskoe Stroitel'stvo, No. 12, pp. 33-40 (Hydrotechnical Construction, 1987, Plenum Publ., pp. 713-722). CHANSON, H. (1988). "Study of Air Entrainment and Aeration Devices on Spillway Model." Research Report 88-8, Univ. of Canterbury, New Zealand. CHANSON, H. (1990). "Study of Air Demand on Spillway Aerator." Jl of Fluids Engrg., ASME, Vol. 112, Sept., pp. 343-350. CHANSON, H. (1991). "Aeration of a free jet above a spillway. ", Jl. of Hyd. Res., IAHR, Vol. 29, No. 5. JEVDJEVICH, V., and LEVIN, L. (1953). "Entrainment of Air in flowing Water and Technical Problems connected with it." Proc. of 5th IAHR Congress, Minneapolis, USA, pp. 439-454. LOW, H.S. (1986). "Model Studies of Clyde Dam Spillway Aerators." Research Report Ref. 86-6, Univ. of Canterbury, New Zealand.. RUTSCHMANN, P., and HAGER, W.H. (1990). "Air Entrainment by Spillway Aerators." Jl of Hyd. Engrg., ASCE, Vol. 116, No. 6, pp. 765-762. TAN, T.P. (1984). "Model Studies of Aerators on Spillways." Research Report Ref. 84-6, Univ. of Canterbury, New Zealand. WOOD, I.R. (1983). "Uniform Region of Self-Aerated Flow." Jl Hyd. Eng., ASCE, Vol. 109, No. 3, pp. 447-461.
Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Originally published as CHANSON, H. (1992). "Reduction of Cavitation on Spillways by Induced Air Entrainment - Discussion." Can. Jl of Civ. Eng., Vol. 20, Oct., pp. 926-928 (ISSN 0315-1468). Copyright 1992 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: Discussion - responses, round table/panel discussions, Q&A, reply
Collection: School of Civil Engineering Publications
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