Abstract
Nonlinear interactions among incident wave, tank-sloshing and floating body coupling motion are investigated. The fully nonlinear sloshing and body-surface nonlinear free surface hydrodynamics is simulated using a Non-Uniform Rational B-Spline (NURBS) higher-order panel method in time domain based on the potential theory. A robust and stable improved iterative procedure (Yan and Ma, 2007) for floating bodies is used for calculating the time derivative of velocity potential and floating body motion. An energy dissipation condition based on linear theory adopted by Huang (2011) is developed to consider flow viscosity effects of sloshing flow in nonlinear model. A two-dimensional tank model test was performed to identify its validity. The present nonlinear coupling sway motion results are subsequently compared with the corresponding Rognebakke and Faltinsen (2003)’s experimental results, showing fair agreement. Thus, the numerical approach presented in this paper is expected to be very efficient and realistic in evaluating the coupling effects of nonlinear sloshing and body motion.
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Foundation item: Supported by the National Natural Science Foundation of China (Grant No. 51079032) and the “111 project” (Grant No. B07019).
Shuo Huang was born in 1984. She is a doctoral student at Harbin Engineering University. Her current research interests include hydrodynamic loads, tank sloshing and the prediction of seakeeping floating body motion.
Wenyang Duan was born in 1967. He is a professor and a PhD supervisor at Harbin Engineering University. His current research interests include nonlinear wave-body interactions, SPH method.
Hao Zhang was born in 1984.He is an engineer at CCCC-FHDI Engineering Co., Ltd (The Fourth Harbour Engineering Investigation and Design Institute of the Ministry of Communications, China Communication Construction Company). His current research interests include wave-body interactions and harbour design.
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Huang, S., Duan, W. & Zhang, H. A coupled analysis of nonlinear sloshing and ship motion. J. Marine. Sci. Appl. 11, 427–436 (2012). https://doi.org/10.1007/s11804-012-1152-z
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DOI: https://doi.org/10.1007/s11804-012-1152-z