Impedance Analytical Method of Wave Run-up and Reflection from A Slotted-Wall Caisson Breakwater  

作　　者：朱大同 

机构地区：[1]Southeast Traffic Engineering Consultation and Supervision Co.,Ltd.,Southeast University [2]River and Harbor Engineering Department,Nanjing Hydraulic Research Institute

出　　处：《China Ocean Engineering》2010年第3期453-465,共13页中国海洋工程（英文版）

摘　　要：An impedance analytical method （IAM） is developed to study the interaction of plane water wave with a slotted-wall caisson breakwater. The non-linear boundary condition at the slotted-wall is expressed in terms of flow resistance. A set of algebraic expressions are obtained for free surface elevation inside and outside chamber, and reflection coefficient. The prediction of the reflection coefficients shows that the relative widths of the chamber inducing the minimum reflection coefficient for a slotted-wall caisson breakwater are in a range of 0.10～0.20, which are smaller than that （0.15～0.25） for a perforated-wall caisson breakwater. The reflection coefficients and free surface elevation obtained by the present model are compared with that of laboratory experiments carried out by previous researchers.An impedance analytical method （IAM） is developed to study the interaction of plane water wave with a slotted-wall caisson breakwater. The non-linear boundary condition at the slotted-wall is expressed in terms of flow resistance. A set of algebraic expressions are obtained for free surface elevation inside and outside chamber, and reflection coefficient. The prediction of the reflection coefficients shows that the relative widths of the chamber inducing the minimum reflection coefficient for a slotted-wall caisson breakwater are in a range of 0.10～0.20, which are smaller than that （0.15～0.25） for a perforated-wall caisson breakwater. The reflection coefficients and free surface elevation obtained by the present model are compared with that of laboratory experiments carried out by previous researchers.

关 键 词：plane wave slotted-wall caisson wave reflection wave run-up impedance analytical method （IAM） 

分 类 号：P753[交通运输工程—港口、海岸及近海工程]