柳淑学

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博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:水利工程系

电子邮箱:liusx@dlut.edu.cn

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An unstructured FEM model based on Boussinesq equations and its application to the calculation of multidirectional wave run-up in a cylinder group

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论文类型:期刊论文

发表时间:2012-09-01

发表刊物:APPLIED MATHEMATICAL MODELLING

收录刊物:SCIE、EI、Scopus

卷号:36

期号:9

页面范围:4146-4164

ISSN号:0307-904X

关键字:Multidirectional wave; FEM; Boussinesq equations; Cylinder group

摘要:In this paper, a numerical model based on the improved Boussinesq equations derived by Beji and Nadaoka [5] is first developed using unstructured finite element technique. A locally rotated coordinate system is introduced to improve the treatment for the fully reflective boundaries whose orientation does not coincide with the coordinate system. The Adams-Bashforth-Moulton predictor-corrector scheme is used for time integration. Typical examples are employed to validate the numerical model. Based on the developed model, multidirectional wave propagation through a cylinder group is numerically calculated and the effects of the wave directionality on the waves in the group and the wave run-up on the cylinders are investigated. Numerical results show that the wave directionality has considerable effect on the wave run-up in the cylinder group. (C) 2011 Elsevier Inc. All rights reserved.