开孔结构是海上油气水下生产装备中一种典型形式，确定其水动力特性具有重要意义。针对开孔板在水下强迫振荡的问题，基于RANS方程求解不同振幅和周期下的水动力系数，并将结果与文献模型实验比对，验证数值结果正确性。研究了简谐运动KC数和频率对不同板厚、开孔率、开孔直径的板受到垂向阻力的作用规律，基于一阶垂向阻力模型采用最小二乘法计算附加质量系数和阻尼系数，分析运动参数和几何参数对附加质量系数和阻尼系数的影响。结果表明，KC数和开孔率对附加质量系数影响较大，板厚与开孔率对阻尼系数影响较大。本文研究结果可为水下结构设计和开孔板布局方案设计提供参考。
The porous plate is a typical form of offshore oil and gas underwater production equipment. It is of great significance to determine its hydrodynamic characteristics. The forced oscillation of perforated plates in still water were investigated based on the Reynolds-Averaged Navier–Stokes (RANS) equations, the hydrodynamic coefficients under different oscillation amplitudes and periods are calculated, and the numerical results are validated through comparison with experimental data from the literature. The effects of the Keulegan–Carpenter (KC) number and oscillation frequency on the vertical drag forces acting on plates with varying thicknesses, porosities, and hole diameters are examined. A first-order vertical drag force model is used in conjunction with the least squares method to determine the added mass and damping coefficients. The influences of motion and geometric parameters on these coefficients are analyzed in detail. The results indicate that the KC number and porosity have significant effects on the added mass coefficient, while plate thickness and porosity greatly influence the damping coefficient. The findings of this study provide valuable references for the design of underwater structures and the layout of perforated plates.
2026,48(1): 93-99 收稿日期：2025-4-14
DOI：10.3404/j.issn.1672-7649.2026.01.013
分类号：U661.1
基金项目：国防科技重大专项资助项目（2025ZD1403400）；国家自然科学基金资助项目（52371274）
作者简介：何宁(1977-),男,教授级高工,研究方向为海洋结构物设计与安装
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