Research Article
Sep 1978
Computing Two-Dimensional Dam-Break Flood Waves
Publication: Journal of the Hydraulics Division
Volume 104, Issue 9
Abstract
A mathematical model of two-dimensional unsteady flow through a breached dam is developed. The numerical method of characteristics in three independent variables is used to construct an algorithm correct to second order with respect to time. The solution progresses at specified time intervals. At any time, the flow conditions are obtained by extending characteristic conoids back to a previously computed time plane and allowing information to propagate along the curvilinear rays of these conoids. Both the negative wave propagating into the reservoir and the jet emerging from the breach and eventually inundating the valley downstream of the dam are modeled in detail. Arbitrary dam geometry and channel topography can be taken into account. Propagation of the wave fronts is simulated by a computational grid moving with time. The exact computed results of the model are presented graphically as axonometric projects for the depth, and as plan-view, two-dimensional vector fields for the flow velocities.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Hydraulics Division
Volume 104 • Issue 9 • September 1978
Pages: 1269 - 1288
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Sep 1978
Published online: Feb 3, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
Nikolaos D. Katopodes, AM.ASCE
Asst. Development Engr., Dept. of Land, Air and Water Resources, Univ. of California, Davis, Calif.
Theodor Strelkoff, M.ASCE
Prof. of Hydr. Engrg., Univ. of California, Davis, Calif.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
Cited by
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
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.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
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.