基于MPS方法的固定半潜式平台波浪爬升数值模拟
Numerical simulation of wave run-up for fixed semi-submersible platform based on MPS method
吴萌萌 1王尼娜 2万德成1
作者信息
- 1. 上海交通大学 船舶海洋与建筑工程学院 船海计算水动力学研究中心(CMHL),上海 200240
- 2. 中国电建集团华东勘测设计研究院有限公司,浙江 杭州 310014
- 折叠
摘要
在波浪与半潜式平台相互作用的情况下,波浪会沿着平台立柱爬升,并对平台立柱产生砰击作用.在极端情况下,波浪甚至可能砰击至平台下甲板,严重影响平台的安全.因此,对于半潜式平台设计来说,准确预测平台在波浪中的波浪爬升和砰击效应具有重要意义.采用无网格粒子法求解器MPSGPU-SJTU对波浪作用下的固定半潜式平台问题进行了数值研究,将MPS(moving particle semi-implicit)方法与GPU(graphics processing unit)并行加速技术相结合,并将其应用于规则波作用下的固定半潜式平台波浪爬升与波浪砰击问题的数值模拟.3种不同波高的规则波波浪被应用于半潜式平台数值模拟中,随着波高的增加,平台下甲板更多区域受到了波浪的砰击,同时平台设置的测压点处压力峰值也随之增大.
Abstract
In the interaction between waves and semi-submersible platforms,waves can climb along the platform columns and exert impact loads on them.In extreme cases,waves may even strike the platform's lower deck,posing a severe safety risk.Therefore,accurately predicting wave-induced uplift and slamming effects on the platform is of great significance for its design.In this study,based on the meshless particle solver MPSGPU-SJTU,the numerical simulation of the semi-submersible platform under the action of waves was carried out,the MPS(moving particle semi-implicit)and GPU(graphics processing unit)parallel acceleration technology was utilized to numerically investigate the behavior of fixed semi-submersible platforms under wave action.Numerical simulations were conducted to analyze wave-induced uplift and slamming phenomena for fixed semi-submersible platforms subjected to regular waves with three different wave heights.As the wave height increased,more areas of the platform's lower deck were subjected to wave slamming,and the peak pressures at the pressure measurement points on the platform also increased accordingly.
关键词
MPS方法/固定半潜式平台/GPU并行加速技术/波浪爬升/波浪砰击Key words
MPS method/fixed semi-submersible platform/GPU parallel acceleration technology/wave run-up/wave slamming引用本文复制引用
基金项目
国家自然科学基金资助项目(52131102)
出版年
2024
NETL
NSTL
万方数据