期刊论文

Study on the hydrodynamics around the vertical four-pile structure under solitary waves

中文

船舶力学

1007-7294

2020

24

3

301-310

10.3969/j.issn.1007-7294.2020.03.004

51309035:国家自然科学基金 51239001:国家自然科学基金 14B002:湖南省教育厅科学研究项目 :大连理工大学海岸 LP1510:国家重点实验室开放基金

本校为第一机构

本文通过基于Navier-Stokes方程的三维数值模型模拟了孤立波与四立柱结构相互作用的水动力特征,考虑了不同入射波高和柱间间隙的影响,并通过物理实验对比验证了四柱结构附近的自由液面、流速和动水压强。随后运用该模型进一步分析了四立柱结构前后排圆柱上波浪的爬高、结构附近的流场和涡量、前后排圆柱表面的动水压强以及结构所受的总波浪力。研究结果表明:随着入射波高与静水深比值Hi/h的增加,前排圆柱相对最大爬高增大,后排圆柱的相对爬高变化不明显,四立柱结构相对总波浪力则减小;当圆心距与柱直径的比值S/D

In this study, three-dimensional simulations of the hydrodynamics around a vertical four-pile structure subjected to solitary waves were conducted based on Navier-Stokes equations, the effects of both incident wave height and spacing between adjacent piles were examined. The numerical model was firstly validated by laboratory experiments in view of the free-surface elevations, velocities and dynamic pressures near the four-pile structure, and then used to analyze the wave runup on the piles, the flow field and vorticity around the pile structur...