جستجوی مقالات مرتبط با کلیدواژه "انرژی موج" در نشریات گروه "مهندسی دریا"

Nearshore is dynamic and constantly affected by the environmental conditions of the sea, on the other hand, it plays a great role in economic-social management issues. The shoreline is also a part of the nearshore that is constantly affected by tide, waves, currents and human activities. Therefore, it is expected that this section will always be accompanied by changes. The first step of any nearshore development and construction is to know the hydrodynamic conditions of the area. In this study, an attempt has been made to investigate the sensitivity of the shoreline of Bandar Lengeh County by considering the height and energy of nearshore waves. Wave height and energy data have been estimated by running the MIKE 21 spectral wave numerical model for a period of 12 months. The results have been obtained with good accuracy compared to ECMWF data. The correlation coefficient and the RMSE are equal to 0.95 and 0.239. The modeling results show that the maximum average height and energy of waves in the shoreline are 0.22 m and 0.21 kW/m, respectively, in the last months of spring and the beginning of summer. Using the fuzzy-gamma logic and considering the gamma coefficient as 0.9, shoreline sensitivity to variables has been estimated and finally divided into three classes High, moderate, and low. 20% of the shoreline is in the high class, and 23% and 57% of the shoreline are in the moderate and low class, respectively.

Many technologies to absorb wave energy is provided and there are different ways to optimize the efficiency of wave energy converters. In this study, the analysis of mooring system and its impact on the dynamics of a point absorber wave energy converter was considered.
Energy absorption from ocean waves by two-body point absorber converters depends on the relative displacement between the buoy and submerged body of a point absorber converter in the direction of heave. For this purpose, in wave energy converter is used a three-point mooring system with heave plate, Conventionally. In this paper, two types of mooring systems for a point absorber converter are considered. Then, the dynamic of two models is analyzed in the regular wave. Hydrodynamic Forces and coefficients are calculated by the discretization of boundary integral equations in the wave scattering and radiation problem.
The responses of the submerged body and buoy to regular wave were investigated. The results are validated with the available results. Extracted energy is calculated via the value difference between the relative displacement of the buoy and submerged body. The obtained results showed the significant contribution of the tension mooring system into enhanced the value of relative motion and the efficiency of the converter