نتایج جستجو برای: dam break

تعداد نتایج: 54938  

Journal: :Water 2023

Dams are expensive technical constructions that ensure food production, sustain farmers’ income, and cover a large percentage of urban water supply demands. However, the threat dam break flood, which can be extremely dangerous for local society, should taken into account, proactive mitigation measures planned. Towards this direction, modelling flood hazard assessment essential developing crisis...

2005
Hubert Chanson

Forensic studies of past hydraulic structure failures are rare despite their critical relevance to modern hydraulic design, and the writers (Dai et al., 2005) must be congratulated for their outstanding study. Herein the discussion is focused on two aspects of the conclusion. It is believed that dam overtopping was the primary cause of the Dadu river landslide dam failure, although aftershocks ...

Journal: :ISPRS Int. J. Geo-Information 2013
Sudha Yerramilli

The overall objective of the study is to generate information for an enhanced land use planning with respect to flood hazards. The study assesses the potential impact of climate change by simulating a dam break scenario in a high intensity rainfall event and evaluates the vulnerability risk in the downstream region by integrating ArcGIS and Hydrologic Engineering Centers River Analysis System (...

Journal: :Journal of animal science 1994
K C Davis M W Tess D D Kress D E Doornbos D C Anderson

Results from a 10-yr study of five dam breed groups in a range beef production system were used as inputs to a simulation model to evaluate life cycle biological and economic performance. Dam breed groups were straightbred Herefords (HH), Angus-Hereford and Simmental-Hereford F1 crosses (AH and 1S1H), 75% Hereford-25% Simmental (1S3H), and 25% Hereford-75%. Simmental (3S1H). Biological measures...

Journal: :Frontiers in Earth Science 2023

Overtopping dam break is a frequent accident in tailings reservoirs. However, little attention has been paid to the study of overtopping hydraulic erosion damage characteristics after adding reinforcement. Nowadays, there were few people have researched prediction failure process reinforced dam. It important significance establish model for which aims at problem tailings. For anti-erosion and a...

2009
HUBERT CHANSON

In dam break waves, the surge front is a sudden discontinuity characterized by extremely rapid variations of flow depth and velocity. In this study, simple analytical solutions for instantaneous dam break wave are developed using the method of characteristics. The solutions are obtained for initially dry horizontal and sloping channels with turbulent motion, and they are compared with several d...

Journal: :Computers & Geosciences 2005
Nick Martin Steven M. Gorelick

MOD_FreeSurf2D is an open source MATLAB code that simulates fluid velocities and depths in rivers and streams. Although this model was designed for a specific purpose, MOD_FreeSurf2D can be employed in general scenarios when the depth-averaged, shallow water equations apply. The model approximates the depth-averaged, shallow water equations with a finite volume, semi-implicit, semi-Lagrangian r...

Journal: :Natural Hazards 2022

Many of Iraqi's high-hazard dams lack an Emergency Action Plan, which should include a flood inundation map to show downstream areas would be flooded if the were fail. This article presents results simulation hypothetical 2D dam break for 58 m high Khassa Chai in Kirkuk, Iraq, using HEC-RAS 5.0.7 software. The is situated 7.4 km north Kirkuk. simulations revealed that dam-break will affect eigh...

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