عقیل ایرانمنش

One of key axes in the coastal economy is the use of renewable energy, including sea energy. Therefore, the numerical investigation of the behavior of wave energy converters is of fundamental importance in the discussions of seabed economy. In the present study, Navier-Stokes equations have been solved in order to analyze the behavior of two immersed spherical wave energy converters subjected to nonlinear waves. The method of virtual solution domain and Volume of Fluid has been used for modeling. The deformation of the free surface of the fluid is also modeled using the Volume of Fluid while the flow regime is laminar. The aim of this study is to numerically investigate the interaction of two immersed spherical wave energy converters under the influence of nonlinear waves. Therefore, the effects of different factors such as distance ratio, density, fluid height, type of excitation and the cross-sectional area of the analyzed tank on the interaction of two submerged spherical wave energy converters have been investigated. To validate the numerical model, the results of the present project have been compared with the existing experimental and numerical results. According to the obtained numerical results, a good agreement between the numerical results of the present study and the numerical and laboratory results conducted by other researchers has been observed. According to the obtained results, increasing the cross-sectional area of the tank will increase the interaction between the two immersed spherical wave energy converters. Also, with the increase in the height of the fluid, the amount of interaction between the two wave energy converters will decrease significantly. Finally, the comparison and analysis of the obtained numerical results showed that in the harmonic excitation mode, a significant reduction in the interaction between the two spherical wave energy converters was observed compared to the linear excitation mode.