In present study, the effect of reservoir length on seismic performance of concrete gravity dam has been investigated. Monte Carlo probabilistic analysis has been used to achieve a sensitivity of the responses to variation of truncated reservoir length in finite element model. The ANSYS software based on finite element method is applied for modeling and analysis. The Pine Flat dam in California...

In this paper we will present an approach to solving the problem of choice of an optimal reservoir control strategy in the situation of flood emergency. The potential and often adopted actions include spontaneous releases of water from the reservoir based on the emergency precipitation forecasts. As side effects, the water level sinks below the minimum necessary to sustain the ecosystems in res...

in the present paper, a 3d numerical model has been applied to predict the flow hydrodynamics around power intakes within the dez dam reservoir. the dez dam is a 203 m high, double arch concrete dam which is constructed by italians in 1962. since then, sedimentation in reservoirhas continued and since the dam does not have bottom outlet, the reservoir bed level is raising by a rate of about 2.5...

Sarvak formation, with the middle cretaceous (Cenomanian) age, is one of the stratigraphic units of the Bangestan group in the southern Iran. The carbonate rocks of this formation form the reservoir rock in the study field. Generally, Sarvak formation is subdivided into three members including Mishrif, Khatiyah, and Maddud in the Persian Gulf, and the average thickness of the reservoir unit (i....

Eutrophication is considered as a serious problem in water reservoirs. Awareness about the eutrophic status of each reservoir could help in providing a better understanding of the problem in a global scale. The present study was conducted to assess temporal and spatial eutrophication index in a water reservoir (Sahand dam) in the northwest of Iran. Physico-chemical parametres that are effective...

Long-term operation of the reservoir at flood limit water level (FLWL) in season is not conducive to exertion comprehensive benefits reservoir, especially free period, causing a certain waste resources. In order make full use resources and avoid risk flooding due extreme events, this paper proposes dynamic decision-making model which considers utmost resources, effective response measures for p...

In this paper, a method for long-term optimal operation of hydropower station is proposed to control the frequency reservoir level fluctuation. We introduce integer variable which describes rise and fall level, number changes, state transition equation change fluctuation into dynamic programming method. This can obtain global solution under different numbers fall, thus improving controllability...