孤立波与梯形防波堤作用的CIP模拟

A two-dimensional numerical wave tank based on the CIP (constrained interpolation profile) method was constructed to investigate the interaction of a solitary wave and a trapezoid seawall, as well as the influence of water depth on this process. First, an introduction to the numerical model was carried out, and the flow solver employed a multiphase model to treat fluid-structure interaction problems based on CIP method. THINC (tangent of hyperbola for interface capturing) scheme was applied for free surface capturing. Then, convergence of this numerical model was tested, along with the comparison of computational results and published experimental data. Finally, the influence on the process of this interaction between a solitary and a trapezoid seawall caused by different water depth was investigated. By keeping non-dimensional incident wave height as consistent, the effects of different water depths on hydrodynamics, free surface elevation and flow field were analyzed. The velocity vector distribution and vorticity field at free surface elevation reaching the maximum moment and the pressure at the moment of hydrodynamic extremes were displayed, and flow field characteristics of six special moments were analyzed. Results show that the numerical results calculated by CIP method agree well with the experimental results.