Dam break analysis of Old Aswan Dam on Nile River using HEC-RAS
by Amira M. Helwa; Mohamed H. Elgamal; Ashraf H. Ghanem
International Journal of Hydrology Science and Technology (IJHST), Vol. 10, No. 6, 2020

Abstract: The Egyptian segment of the Nile River is controlled from its upstream end by two dams: the High Aswan Dam (HAD) and the Old Aswan Dam (OAD). Nowadays, questions are being raised about the efficiency and safety of the Old Aswan Dam and what will happen if the dam fails? For this regard, a 1D hydraulic model using HEC-RAS package was developed to investigate a number of dam break scenarios, to estimate the outlet hydrograph from the dam site and to route the produced flood wave throughout the first river reach from the dam site up to Esna barrage. A numerical sensitivity analysis was performed to select the relevant values of the implicit weighting factor θ, Δx and Δt. Eight dam break scenarios were developed to investigate the effect of initial water level, inlet flow and dam breach width on the expected inundated area. Results showed that there would not be catastrophic consequences from the Old Aswan Dam failure. The main concern is when large flow values are released deliberately (Q = 605 mm3/sec) from the Aswan Dam.

Online publication date: Mon, 26-Oct-2020

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Hydrology Science and Technology (IJHST):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com