单波形底水面防波堤消波性能研究.

In order to improve the wave attenuation performance of a box-type free-surface breakwater, the bottom contour of the box is transformed from flat to wave-contour bottom, so a kind of single wave-contour bottom free-surface breakwater is proposed. The physical model tests are carried out on single wave-contour bottom breakwater, and the wave attenuation performance of the model is studied by changing the location method, draft depth and wave steepness. By using Fluent software, the fixed model is numerically simulated under the condition of fluid viscosity, and the flow field details of the model are analyzed to explore the wave attenuation mechanism of the single wave-contour bottom model. The results show that: 1) The wave attenuation performance of the single wave-contour bottom breakwater in the fixed mode is significantly better than that in the anchored mode; 2) As the relative draft increases, the wave attenuation performance of the single wave-contour bottom breakwater improves. 3) The effect of wave steepness on the single wave-contour bottom breakwater is small. The wave attenuation performance of a single wave-contour bottom breakwater is better than that of a flat-bottom breakwater, and the increase of wave attenuation effect is up to 50%. [ABSTRACT FROM AUTHOR]