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极端波浪环境作用下,浮体易发生上浪拍击等强非线性现象,这一问题也是波浪与浮体相互作用研究的难点之一。该文基于高阶CIP(Constrained Interpolation Profile)法,采用THINC(Tangent of Hyperbola for Interface Capturing)数值技术精确捕捉自由液面,建立了二维多相流强非线性数值水槽模型。通过模拟线性波和孤立波的生成、传播过程,对该模型的收敛性、稳定性及造波性能进行了全面的验证与分析。利用该数值模型模拟和分析了极端波浪对浮体的强非线性作用。
Under the action of the extreme wave environment, the floating body is prone to strong non-linear phenomena such as the upper-wave lapping. This problem is also one of the difficulties in the study of the interaction between waves and buoys. Based on the high order CIP (Constrained Interpolation Profile) method, THINC (Tangent of Hyperbola for Interface Capturing) numerical technique was used to accurately capture the free surface. A two-dimensional multiphase flow numerical model was established. By simulating the generation and propagation of linear waves and solitary waves, the convergence, stability and wave-making performance of the model are fully verified and analyzed. The numerical model is used to simulate and analyze the strong nonlinear effect of extreme wave on the floating body.