WAVE-CURRENT INTERACTIONS WITH THREE-DIMENSIONAL FLOATING BODIES

被引：0
作者：
LIU ZhenTENG Bin State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalian China NING Dezhi State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalian China State Key Laboratory of Satellite Ocean Environment DyamicsHangzhou China GOU Ying State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalian China [116024 ,116024 ,310012 ,116024 ]
机构：
来源：
JournalofHydrodynamics | 2010年 / 22卷 / 02期
关键词：
wave-current interaction; floating bodies; time-domain simulation; Time-domain Higher-Order Boundary Element Method(THOBEM);
D O I：
暂无
中图分类号：
O35 [流体力学];
学科分类号：
080103 ; 080704 ;
摘要：
A Time-domain Higher-Order Boundary Element Method(THOBEM) is developed for simulating wave-current interactions with 3-D floating bodies.Through a Taylor series expansion and a perturbation procedure,the model is formulated to the first-order in the wave steepness and in the current velocity,respectively.The boundary value problem is decomposed into a steady double-body flow problem and an unsteady wave problem.Higher-order boundary integral equation methods are then used to solve the proposed problems with a fourth-order Runge-Kutta method for the time marching.An artificial damping layer is adopted to dissipate the scattering waves.Different from the other time-domain numerical models,which are often focused on the wave-current interaction with restrained bodies,the present model deals with a floating hemisphere.The numerical results of wave forces,wave run-up and body response are all in a close agreement with those obtained by frequency-domain methods.The proposed numerical model is further applied to investigate wave-current interactions with a floating body of complicated geometry.In this work,the regular and focused wave combined with current interacting with a truss-spar platform is investigated.
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收藏
页码：229 / 240
页数：12
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