摘要
针对极地开发中浮冰与波浪相互作用规律认识不足和国内自编程模拟浮冰与波浪相互作用经验不足的问题,本文基于开源计算流体力学软件包OpenFOAM构建了适用于波浪与浮冰相互作用的求解器overWaveFoam,基于该求解器构建了一种波浪-浮冰模型,通过与实验结果的对比验证了该模型的可靠性,并基于该模型对不同参数下的浮冰运动响应和波浪周期进行了研究,结果表明:正方形薄冰的垂荡和纵摇运动的幅频响应随波陡的增大而减小,相对周期随波陡增大而增大,漂移速率与波速的比值与波陡呈二次方关系;浮冰各自由度运动周期与波浪周期的比值均随波长的增大而减小;在冰厚较大时,垂荡幅频响应曲线出现峰值,峰值随着冰厚增加而增大,表明浮冰与波浪的共振现象逐渐增强;在相对波长大于7时,浮冰可视为水质点进行处理。
Given the lack of understanding of wave-ice interaction in polar regions and domestic expertise in selfprogramming simulation for such phenomena,this study developed a solver called over WaveFoam using the opensource computational fluid dynamics software package OpenFOAM.The proposed solver was designed to simulate wave-ice interaction.A wave-ice interaction model was constructed using this solver,and its reliability was verified by comparing it with experimental results.Based on this model,this study explored the influence of different wave parameters and ice floe thickness on the ice floe motion response and wave period in the flow field.The results show that as the wave steepness increases,the heave and pitch amplitude-frequency responses of the ice floe decrease,while the relative period shows an upward trend.The ratio of the ice floe drift rate to the wave celerity exhibits a quadratic relationship with wave steepness.The ratio of the motion period for each degree of freedom to the wave period decreases with increasing wavelength.When the ice floe thickness is relatively large,a peak value emerges in the heave amplitude-frequency response curve,and the peak value grows with increasing ice floe thickness,indicating a gradual enhancement resonance effect between the ice floe and waves.In addition,when the relative wavelength exceeds 7,the ice floe can be treated as water particles.
作者
周展羽
王亦晗
倪宝玉
狄少丞
ZHOU Zhanyu;WANG Yihan;NI Baoyu;DI Shaocheng(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《哈尔滨工程大学学报》
北大核心
2025年第7期1287-1295,共9页
Journal of Harbin Engineering University
基金
国家自然科学基金区域联合基金项目(U20A20327)
国家自然科学基金项目(52192693,52192690,51979051,51979056)
国家重点研发计划(2021YFC2803400)。
