High-Precision Calculation of Wave-Current Forces on Offshore Wind Turbines Based on the Regularized Singular Boundary Method

The main purpose of this article is to develop a regularized singular boundary method for high-precision simulation of wave-current forces on offshore wind turbines. The engineering bottlenecks encountered in the construction of offshore wind turbines are discussed, i.e., how to effectively deal with the singularity of the Green's function at the origin, and how to accurately calculate wave forces on offshore wind turbines. An origin intensity factor technique for marine dynamic environment simulation is proposed. Based on the origin intensity factor and the Green's function, a regularized singular boundary method is constructed, which only requires placing source points on the wet surface of offshore wind turbines. Wave load is calculated by substituting wave parameters affected by wave-current interaction into the linear diffraction model. The wave-current force on offshore wind turbines is finally obtained by superimposing the current load and the wave load. Numerical experiments show that the regularized singular boundary method can accurately analyze the Bragg resonance of offshore wind turbines caused by wave-current force.