中文摘要：

在这研究，一张泼出的床上的沉没防波提附近的流动地和波浪繁殖的特征与数字模型一起被调查。垂直 twodimensional 模型的管理方程是平均的雷纳兹 Navier 司烧方程。雷纳兹压力条款被非线性的 k 关上吗？ ?骚乱交通模型。免费表面通过 PILC-VOF 方法被跟踪。建议数字模型与试验性的结果被验证。当波浪在防波提上宣传时，数字结果证明波浪侧面可以变得更不均匀。当波浪冠在防波提上宣传时，逆时针方向的旋涡可以产生。相反，什么时候飘动空在防波提上宣传，顺时针方向，旋涡可以产生。同时，波浪冠创造的旋涡的影响地区比由波浪创造了的大空。狂暴的动能，狂暴的驱散和旋涡粘性的所有最大的价值发生在防波提的顶上。狂暴的驱散和狂暴的动能增加的旋涡粘性增加。因为更低的泛音的狂暴的驱散增加和能量被变成更高的泛音，波浪能量可以很快在防波提附近减少。

英文摘要：

In this study, characteristics of flow field and wave propagation near submerged breakwater on a sloping bed are investigated with numerical model. The governing equations of the vertical two-dimensional model are Reynolds Averaged Navier Stokes equations. The Reynolds stress terms are closed by a nonlinear k - ε turbulence transportation model. The free surface is traced through the PILC-VOF method. The proposed numerical model is verified with experimental results. The numerical result shows that the wave profile may become more asymmetrical when wave propagates over breakwater. When wave crest propagates over breakwater, the anticlockwise vortex may generate. On the contrary, when wave hollow propagates over breakwater, the clockwise vortex may generate. Meanwhile, the influenced zone of vortex created by wave crest is larger than that created by wave hollow. All the maximum values of the turbulent kinetic energy, turbulent dissipation and eddy viscosity occur on the top of breakwater. Both the turbulent dissipation and eddy viscosity increase as the turbulent kinetic energy increases. Wave energy may rapidly decrease near the breakwater because turbulent dissipation increases and energy in lower harmonics is transferred into higher harmonics.