摘要
对流固耦合问题进行了系统的分类并在移动粒子半隐式法中建立了刚体与流体之间的单向及双向耦合模型。对二维溃坝问题和活塞式造波板的造波问题进行了数值模拟,结果与实验值或分析解符合得较好。对浮体在静水中的自由振荡问题进行了计算,浮体质心高度与理论值的最大偏差控制在0.5%以内,达到了工程计算的精度。在长板形自由浮体对正弦波浪的运动响应算例中,综合应用了单向和双向耦合模型,结果表明长度小于波长的浮体随波浪做正弦规律的起伏运动和摇摆运动,同时沿行波方向迂回前进,当浮体长度增加时,浮体运动幅度减小。
A one-way and a two-way solid-fluid interaction models in moving-particle semi-implicit method are established by systematically classifying solid-fluid interaction problems.Numerical simulation of the models are performed on two dimensional dam break problem and wave problem generated by a piston type wave generator.The results agree well with either experimental values or analytical solutions.Free-oscillations of a floating body are simulated,and the maximum error between the height of its mass center and theoretical value is controlled in 0.5 ％ which meets the requirement of engineering calculation.The one-way coupling model and the two-way coupling model are integrately applied in a dynamic response example for sine wave of a board type floating body.Results show that the floating body performs sinusoidal movements in vertical direction and sinusoidal rotation in circumferential direction while moving forward in to-and-fro mode when the length of the body is shorter than the wave length,and that the motion amplitude decreases when the length of the body increases.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2014年第8期136-140,共5页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金资助项目(51106125
51236006)
中央高校基本科研业务费专项资金资助项目(2012jdhz41)
关键词
流固耦合
移动粒子半隐式法
浮体
造波
fluid-structure interaction
moving-particle semi-implicit method
floating body
wave generation
作者简介
曹文瑾（1992-）,男,硕士生.
席光（通信作者）,男,教授,博士生导师.
