Omid Mahpeykar; Mohammadreza Khalilabadi; Karim Kenarkoohi
Abstract
ArvandRoud is known as the most important fresh water inlet of the Persian Gulf and plays a key role in controlling salinity, especially in its northern portion. Since the northern part of the Persian Gulf is exchanged with lagoons and wetlands due to tide, its salinity is of great importance to the ...
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ArvandRoud is known as the most important fresh water inlet of the Persian Gulf and plays a key role in controlling salinity, especially in its northern portion. Since the northern part of the Persian Gulf is exchanged with lagoons and wetlands due to tide, its salinity is of great importance to the ecosystem of the region and the coasts of Khouzestan. In this study, using the Mike model based on the three-dimensional solution of the Navier Stokes equations, assumption of incompressibility, Boussinesq aproximation, and hydrostatic pressure, the effect of Arvandroud on Persian Gulf salinity in two states has been investigated investigated: with a discharge rate of 1400 m3/s and without Arvandroud. The results show that by ignoring the entrance of the Arvandroud to the Persian Gulf, the peak of salinity at the Gulf increases to 7 PSU and affects the southern half of the Persian Gulf along the Arabian coasts. Also, results implicitly indicate that Arvandroud discharge rate has no effect on the amount of water entering and leaving the Strait of Hormuz.
مهندسی دریا
Mahpeykar, Omid; Masoud Sadrinasab; , Morteza Bakhtiari; , Nima Shahni karamzadeh
Abstract
Developed countries are using renewable energy in order to minimize emission of harmful gases, and many countries are studied new designs. Which uses of the later is increasing rapidly. One of the cleanest renewable ocean energy is using the potential of tidal energy. Studies show that the best place ...
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Developed countries are using renewable energy in order to minimize emission of harmful gases, and many countries are studied new designs. Which uses of the later is increasing rapidly. One of the cleanest renewable ocean energy is using the potential of tidal energy. Studies show that the best place for obtaining tidal energy in the Persian Gulf and is the Doragh Estuary, which is located in the northern part of the Persian Gulf. This estuary is the unique area in the Persian Gulf with more than 5 meters tidal range which has the potential to produces maximum tidal energy in this region.In this study, a physical model of Doragh estuary is constructed and employed a pumping system as well as a source of water to create tide in the model. Also two dams are made somehow in the model to reserve water behind these dams during ebb and flood. A propeller which is connected to a turbine is fixed to one of the dams, and works during both ebb and flood in which transfers movement of propeller into electricity. Electrical current is connected to an instrument which show the amount of produced electricity in the model. The results of the model show that by increasing tidal range, electricity increases electricity exponentially. In this experiment the model run with different scenarios to get maximum efficiency which is recorded to 15% during flood and producing of electrical power can increased by 30 to 50 percent during both ebb and flood.