点击次数：

发表时间：2013-01-01

发表刊物：大连理工大学学报

所属单位：建设工程学部

期号：1

页面范围：82-89

ISSN号：1000-8608

摘要：The scaled boundary finite element method (SBFEM) is applied to the solution of short-crested wave interaction with arc-shaped bottom-mounted porous breakwater. The fluid domain is divided into two sub-domains by introducing an imaginary circular interface. The outer one is an unbounded sub-domain and the inner one is a bounded sub-domain. Various porous coefficients for the arc and the imaginary arc are considered. A new variational principle formulation to derive the SBFEM equations for the two sub-domains is developed. Hankel function and Bessel function are chosen as the basis functions for the solution of the unbounded and bounded domains, respectively and matched at public circle boundary. Numerical examples show that the presented method yields excellent results with quite few nodes discretized on the imaginary circle. The effects of the wave parameters and structure configuration including porosity of the arc, the relative wave number and the annular spacing on the wave forces, wave run-up are examined. The experimental results provide valuable reference for the hydrodynamic analyses and structure design of arc-shaped bottom-mounted porous breakwater.

备注：新增回溯数据