NUMERICAL SIMULATION OF FLOOD INUNDATION OF DELTA LANDS IN CASE OF ASWAN HIGH DAM FAILURENUMERICAL SIMULATION OF FLOOD INUNDATION OF DELTA LANDS IN CASE OF ASWAN HIGH DAM FAILURE

Esam El-deen y. Helal, Mohamed M. Sobeih, Ahmed M. El-Belasy, Adel M. El-gendy

Abstract


This study aims to assess the impact of Aswan high dam failure on the inhabited areas downstream of the Delta barrages to the Mediterranean sea or any urban area which may be in the path of the flood surge waves. The study was based on a large amount of available hydraulic data that were analyzed and used as input to the numerical model SOBEK-1D2D. The problem was studied by simulations performed along the Nile branches as (1D) and Delta lands as (2D). Results such as the inundated area of delta lands, flood depth, flow velocity and travel time of flood wave propagations along Damietta and Rosetta branches were obtained to define the time of response for emergency measures. So the size of expected damage of national main structures, within the extension of the study area (Railways, roads, etc) was identified. GIS maps were prepared to evaluate the effects of the dam failure on the inundated area. Suggestions for the emergency procedures are given. The results which could be part of a flood management plan, propose mitigation plans against inundation and warning system. Finally, the important benefit of the study is that future construction projects and must be outside the boundary of expected inundation area.

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