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论文类型：期刊论文

发表时间：2015-10-01

发表刊物：APPLIED OCEAN RESEARCH

收录刊物：SCIE、EI、Scopus

卷号：53

页面范围：236-249

ISSN号：0141-1187

关键字：Submerged or floating structure; Fully coupled fluid-structure modelling; Boundary integral method

摘要：This paper is concerned with the interaction of bubbles, a submerged or floating structure, and free surface waves. A three-dimensional fully nonlinear model has been developed based on the coupling of the boundary integral method (BIM) for bubble dynamics and free surface waves and the finite element method for structure deformation. The present method is well validated by comparing the numerical results with the experimental data. Three structure characteristics, including fixed, rigidly moving and flexible, are investigated separately to determine their influence on bubble dynamics. For a free-floating structure, the free surface causes not only a larger reduction in peak pressure for a rigid structure compared with a fixed body but also the modification of the bubble period and structural response. The interaction between a bubble and a flexible structure, in the absence of a free surface, is simulated. Both the rigid motion and the deformation at the local structure appear in the simulation. The effect of the structural thickness on the reduction in peak pressure is also considered. (C) 2015 Elsevier Ltd. All rights reserved.