Study on Transient Gap Resonance with Consideration of the Motion of Floating Body

作     者：GAO Jun-liang LYU Jing WANG Jing-hua ZHANG Jian LIU Qian ZANG Jun ZOU Tao GAO Jun-liang;LYU Jing;WANG Jing-hua;ZHANG Jian;LIU Qian;ZANG Jun;ZOU Tao

作者机构：School of Naval Architecture and Ocean EngineeringJiangsu University of Science and TechnologyZhenjiang 212100China Key Laboratory of PortWaterway and Sedimentation Engineering of MOTNanjing Hydraulic Research InstituteNanjing 210029China Department of Civil and Environmental Engineeringthe Hong Kong Polytechnic UniversityHong KongChina Centre for InfrastructureGeotechnical and Water Engineering(IGWE)Department of Architecture and Civil EngineeringUniversity of BathBA27AYU.K Shandong Provincial Key Laboratory of Ocean EngineeringQingdao 266100China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2022年第36卷第6期

页      面：994-1006页

核心收录：

学科分类：08[工学] 080103[工学-流体力学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 51911530205) the Natural Science Foundation of Jiangsu Province (Grant Nos. BK20201455 and BK20210885) the Key Laboratory of Port Waterway and Sedimentation Engineering of MOT (Grant No. YK222001-2) the Shandong Provincial Key Laboratory of Ocean Engineering (Grant No. kloe202010) the Key R&D Projects in Guangdong Province (Grant No. 2020B1111500001) the Qing Lan Project of Jiangsu Universities the Royal Society (Grant No. IECNSFC181321) for providing partial support for this work 

主　　题：transient gap resonance focused waves free-surface amplification wave loads heave motion OpenFOAM 

摘      要：In this paper, the transient fluid resonance phenomenon inside a narrow gap between two adjacent boxes excited by the incident focused waves with various spectral peak periods and focused wave amplitudes is simulated by utilizing the open-sourced computational fluid dynamics software, Open FOAM. The weather-side box is allowed to heave freely under the action of waves, and the lee-side box keeps fixed. This paper mainly focuses on how both the spectral peak period and the focused wave amplitude affect the free-surface amplification inside the gap, the motion of the weather-side box, and the wave loads(including the vertical and the horizontal wave forces) acting on both boxes.For comparison, another two-box system with both boxes fixed is also considered as a control group. It is found that the motion of the weather-side box significantly changes the characteristics of the transient gap resonance, and it would cause that the fluid resonant period becomes 1.4-1.6 times that of the two-box system with both boxes fixed.All the concerned physical quantities(i.e., the free-surface amplification in the gap, the motion of the weather-side box, the wave loads) are found to closely depend on both the spectral peak period and the focused wave amplitude.