ハイブリッド法による軸対称構造物に作用する流体力および周辺波動場の解析

抄録

A hybrid method for analyzing wave exciting forces, added-mass and damping coefficients in scattered wave field is proposed to reduce computational efforts as compared with the conventional method. The proposed method combines a boundary integral equation method and an expansion method utilizing eigenfunctions. The primary advantage of the method is that the wave height distribution can be obtained without considerable increasing of computational efforts. This is due to the fact that kernels of the integral equation are simpler than those of the conventional method, although more elements are required. Accuracy of numerical solutions obtained by the proposed method is investigated by comparing with the exact solutions. Numerical results are also presented for floating and submerged axisymmetric bodies.