摘要
浮防波堤主要有锚链锚泊和导桩锚泊两种锚泊方式,两种锚泊方式的浮体的运动响应不同,消波效果和水动力特性也不同。该文基于Navier-Stokes方程,采用紧致差分格式CIP(constrained interpolation profile)离散控制方程的对流项,以多相流和浸没边界IB(immersed boundary)的方法处理流体间和固体间的相互作用,以此建立二维数值模型研究规则波作用下导桩锚泊的浮防波堤的水动力特性。运用建立的数值模型研究了导桩锚泊的浮防波堤的垂向运动响应、波浪力和波浪力矩随相对宽度的变化趋势,通过与现有的物理模型试验结果比较,表明所建立的数值模型能够模拟规则波作用下导桩锚泊的浮防波堤的运动响应和受力特性。
Floating breakwaters are usually moored by lines or restrained by piles.The two mooring systems have different performances in hydrodynamics,motion response and wave dissipation.Based on the Navier-Stokes equation,this paper presents a 2-dimentional numerical model to study the hydrodynamic characteristics of pile-restrained floating breakwaters under regular waves.The model utilizes the Constrained Interpolation Profile(CIP)scheme to solve the convection term in the control equation,and multi-phase flow and Immersed Boundary(IB)methods to deal with the fluid-structure interaction.The present model is applied to analyze the influence of the relative breakwater width on the hydrodynamic characteristics including heave-motion response,wave forces and moments.Partial results are similar to the existing experimental results,indicating that this numerical model can simulate the motion and force responses of pile-restrained floating breakwaters.
作者
王钰
纪巧玲
刘庆凯
WANG Yu;JI Qiao-ling;LIU Qing-kai(College of Transportation, Shandong University of Science and Technology, Qingdao, Shandong 266590, China)
出处
《工程力学》
EI
CSCD
北大核心
2019年第B06期268-271,284,共5页
Engineering Mechanics
基金
山东省自然科学基金项目(ZR2016EEB06)
山东省高等学校科技计划项目(J18KA198)
关键词
海岸工程
浮防波堤
数值模拟
导桩锚泊
紧致差分格式
水动力特性
运动响应
coastal engineering
floating breakwater
numerical simulation
pile-restrained
constrained interpolation profile
hydrodynamic characteristics
motion response
