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论文类型：期刊论文

发表时间：2005-06-01

发表刊物：JOURNAL OF HYDRODYNAMICS

收录刊物：Scopus、SCIE、EI

卷号：17

期号：3

页面范围：257-268

ISSN号：1001-6058

关键字：wave reflection; oblique incident wave; traverse wall; perforated caisson; eigen-function expansion

摘要：The interaction of oblique incident waves with infinite number of perforated caissons is investigated. The flu. id 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 are 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.