Time-domain simulation of wave–structure interaction based on multi-transmitting formula coupled with damping zone method for radiation boundary condition |
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| Institution: | 1. School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, China;2. College of Shipbuilding Engineering, Harbin Engineering University, China;1. Southern Institute of Water Resources Research, Ho Chi Minh City, Viet Nam;2. Water Engineering and Management, Asian Institute of Technology, Phathum Thani 12120, Thailand;3. Division of Computational Mechatronics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;4. Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;5. Department of Civil and Environmental Engineering, University of South Carolina, SC 29208, USA;6. School of Biological and Environmental Science, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom;7. Independent Researcher, Melbourne, Australia;8. Laboratory of Environmental Sciences and Climate Change, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City, Viet Nam;9. Faculty of Environment, Van Lang University, Ho Chi Minh City, Viet Nam |
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| Abstract: | Based on the Rankine source, this paper proposed a time-domain method for analyzing the three-dimensional wave–structure interaction problem in irregular wave. A stable integral form of the free-surface boundary condition (IFBC) is employed to update the velocity potential on the free surface. A multi-transmitting formula, with an artificial wave speed, is used to eliminate the wave reflection for radiation condition on the artificial boundary. An effective multi-transmitting formula, coupled with damping zone method, is further used to analyze the irregular wave diffraction at the artificial boundary. We investigate hydrodynamic forces on floating structure and compare our solution to the frequency-domain solution. It is shown that long time simulation can be done with high stability and the numerical results agree well with the solution obtained under the frequency domain. The efficiency of the proposed multi-transmitting formula and the coupled methods for radiation boundary make them promising candidates in studying the irregular water wave problem in time domain. |
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