摘要
基于SPH方法,发展了一种可用于模拟水体中浮体运动的数值模型。通过活塞式造波池中的造波过程以及水平圆柱自由跌落入水算例,验证该模型在波浪传播以及流体驱动浮体问题上的适用性和正确性。在此基础上,将该模型用于研究活塞式造波池中箱式浮体的运动,并获取了箱式浮体六自由度条件下的运动数据以及响应规律。研究发现:波浪驱动下箱式浮体的位移以纵向和垂向为主,横向运动受波浪驱动的影响较小,纵向位移振幅易受波浪激励的影响;波浪驱动下箱式浮体的转动以俯仰转动和横摇转动为主,偏航转动受波浪驱动的影响较小,俯仰转动的角度振幅易受波浪激励的影响。
A numerical model based on the SPH method is developed to simulate the motion of floating bodies in the water.The applicability and accuracy of the model to the problem of wave propagation and fluid-driven floating body are verified by the wave generation in a piston type wave tank and the free-falling of a horizontal cylinder into the water.On this basis,the model was used to study the motion of a floating box in a piston type wave tank,and the data on the motion of floating box under six degrees of freedom and the response laws were obtained.It is found that the displacement response of the floating box to waves is mainly in the surge and heave,sway is less influenced by the wave driven.The displacement amplitude of the floating box surge is susceptible to the influence of wave excitation.The rotation response of the floating box to waves is mainly in pitch and roll,yaw is less influenced by the wave driven.The angular amplitude of the float box pitch is susceptible to the influence of wave excitation.
作者
廖斌
陈善群
LIAO Bin;CHEN Shanqun(School of Architectural and Civil Engineering,Anhui Polytechnic University,Wuhu 241000,China)
出处
《安徽工程大学学报》
CAS
2020年第6期41-47,共7页
Journal of Anhui Polytechnic University
基金
安徽省自然科学基金资助项目(2008085QA22)
安徽工程大学校级重点自然科学研究基金资助项目(XJKY110201905)。
关键词
SPH方法
浮体运动
造波板
波浪驱动
六自由度
SPH method
floating body motion
wave maker
fluid-driven
six degrees of freedom
