REFLECTION OF OBLIQUE INCIDENT WAVES BY PERFORATED CAISSONS WITH TRAVERSE WALL |
| |
| Authors: | LI Yu-cheng State Key Laboratory of Coastal Offshore Engineering Dalian University of Technology Dalian China LIU Hong-jie Zhejiang Provincial Plan Design Research Institute of Communications Hangzhou China DONG Guo-hai State Key Laboratory of Coastal Offshore Engineering Dalian University of Technology Dalian China |
| |
| Affiliation: | LI Yu-cheng State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116023,China,LIU Hong-jie Zhejiang Provincial Plan Design and Research Institute of Communications,Hangzhou 310006,China DONG Guo-hai State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116023,China |
| |
| Abstract: | The interaction of oblique incident waves with infinite number of perforated caissons is investigated. The fluid domain is divided into infinite sub-domains by the caissons, and eigen-function expansion is applied to expand velocity potentials in each domain. A phase relation is introduced for wave oscillation in each caisson, and the structure geometry is considered in constructing the models of reflection waves. The reflected waves with the present analysis include all of the waves traveling in different directions when incident wave period is short. Numerical examinations show that velocities at the inner and outer sides of the front walls of caissons ase close to each other, and reflection coefficients satisfy the energy conservation relation very well when porous effect parameter is infinite. Numerical results show that the reflection coefficients of oblique incident waves are smaller for shorter caissons at low frequency, and decrease with the increase of wave incident angle. |
| |
| Keywords: | wave reflection oblique incident wave traverse wall perforated caisson eigen-function expansion |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
