Analysis of orthogonal wave reflection by a caisson with open front chamber filled with sloping rubble mound

作者：Liu, Yong; Faraci, Carla^*

来源：Coastal Engineering, 2014, 91: 151-163.

DOI：10.1016/j.coastaleng.2014.05.002

• Combined caisson
• Slope
• Rubble mound
• Semi-analytical solution
• Reflection coefficient

A new combined caisson, including an open window on the front wall and an internal rubble mound with a slope, has been proposed and used in Italy. This study presents a semi-analytical solution to estimate the wave absorbing performance of the new combined caisson with regard to orthogonal wave attack. The internal slope of the rubble mound is assumed to be a series of horizontal steps. Then the matched eigenfunction expansions are used to develop the semi-analytical solution. The square-root singularity of fluid velocity at the upper tip of the front submerged wall is incorporated into the solution to enhance the convergence of calculated results. The new semi-analytical solution is confirmed by an independently developed multi-domain boundary element method solution. Also the predictions of the semi-analytical solution agree reasonably well with experimental data. Based on both the calculations and the experimental data, some useful results are presented for practical engineering.

• 出版日期2014-9
• 单位中国海洋大学