| 摘要: |
| 为深入研究内河航道船行波对堤岸的影响，利用OpenFOAM软件与Overset重叠网格技术，结合最新适用于波浪的湍流模型，建立了数值仿真模型分析船舶主动运动引起船行波的演变及影响因素。基于现有物理实验以及建立的仿真模型，深入剖析了12组不同工况下船速与吃水深度对船行波的影响。结果表明，船行波的形成过程复杂，包括壅水波、船艏散波、船艉散波和反射波，并随着离船距离增加而衰减。船速和吃水深度的增加会导致船行波最大波高增加，其中吃水深度影响更为显著。最后通过综合分析多组数值仿真数据，修正了船行波最大波高经验公式，修正后的经验公式能够更好地优化船型和堤岸，并提出了研究不同工况下船行波的计算框架。 |
| 关键词: 内河航道 船行波 数值仿真 经验公式 |
| DOI： |
| 分类号:U61 |
| 基金项目:国家自然科学基金资助项目(U2240220) |
|
| CFD-based correction of Empirical formula for maximum wave height of Ship-induced waves in Inland channels |
|
Sun Jiahua1, Xiao Zhiqiao2, Sheng Jun2, Wu Hao3, Gu Shuitao4
|
|
1.Shanghai Investigation Design and Research Institute Co;2.Shanghai Puhe Engineering Design Co;3.China State Key Laboratory of Estuarine and Coastal Research, School of Marine Sciences, East China Normal University;4.School of Civil Engineering, Chongqing University
|
| Abstract: |
| To investigate the impact of ship-induced waves on riverbank structures in inland channels, a numerical simulation model was developed using OpenFOAM software and Overset grid technology, along with the latest turbulence model for waves. The model analyzes the evolution and influencing factors of ship-induced waves caused by the active motion of ships. Based on existing physical experiments and the established simulation model, a detailed analysis was conducted on the effect of ship speed and draft depth on ship-induced waves under 12 different conditions. The results indicate that the formation of ship-induced waves is complex, including water pile-up waves, bow waves, stern waves, and reflected waves, which attenuate with increasing distance from the ship. Increases in ship speed and draft depth lead to higher maximum wave heights, with draft depth having a more significant impact. Finally, through comprehensive analysis of multiple sets of numerical simulation data, the empirical formula for the maximum wave height was corrected. The revised empirical formula optimizes ship design and bank structures, and a calculation framework for ship-induced waves under different conditions is proposed. |
| Key words: Inland channels Ship-induced waves Numerical simulation Empirical formula. |
