TECHNICAL PAPERS
Oct 1, 1994
Shock‐Wave Reduction by Bottom Drop
Publication: Journal of Hydraulic Engineering
Volume 120, Issue 10
Abstract
The possibility of shock‐wave reduction by a wedge‐shaped bottom drop is considered. The results are shown to depend on the so‐called shock number S. Optimum wall deflection is defined as the configuration with horizontal flow surface ahead and beyond the shock front. Off‐design is also discussed and it is found that acceptable flow conditions occur for a limited range. An earlier approach to the generalized wall profile is expanded by accounting for the bottom drop.
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References
1.
Hager, W. H. (1992). “Spillways, Shockwaves and air entrainment.” ICOLD Bull. 81, Commission Internationale des Grands Barrages, Paris, France.
2.
Ippen, A. T. (1951). “Mechanics of supercritical flow.” Trans. ASCE, Vol. 116, 268–295.
3.
Schwalt, M., and Hager, W. H. (1992). “Shock pattern at abrupt wall deflection.” Proc. Env. Engrg. Session WATER FORUM ’92, ASCE, New York, N.Y., 231–236.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 120 • Issue 10 • October 1994
Pages: 1222 - 1227
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Oct 13, 1992
Published online: Oct 1, 1994
Published in print: Oct 1994
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Authors
Affiliations
Markus Schwalt
Res. Engr., formerly VAW, ETH‐Zentrum, CH‐8092 Zurich, Switzerland
Willi H. Hager, Member, ASCE
Sr. Res. Engr., VAW, ETH‐Zentrum, CH‐8092 Zurich, Switzerland
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.