基于直角网格的海洋平台波浪砰击预报方法研究
Cartesian Grid-based Prediction Method for Wave Slamming of Offshore Platforms
陈乐 1张高俊 1张运兴 1于雪莹 2张益凡3
作者信息
- 1. 鲁东大学 水利工程学院,山东烟台 264039
- 2. 江苏科技大学 船舶与海洋工程学院,江苏镇江 212100
- 3. 哈尔滨工程大学 船舶工程学院,哈尔滨 150001
- 折叠
摘要
由于海洋平台砰击过程中可能出现波浪破碎等现象,波浪砰击载荷预报是海洋平台数值模拟的难点.本文基于直角网格方法,建立了适用于模拟海洋平台波浪砰击过程的三维数值模型.在介绍模型数值方法基础上,首先对模型造波与消波精度进行了验证;其次,对某半潜式平台进行模拟,以验证模型模拟波浪砰击过程的准确性;最后,利用该模型对某四柱海洋平台波浪砰击过程进行了研究.结果表明,当前模型可以较好地模拟海洋平台波浪砰击过程中的波浪破碎、爬升和砰击等现象.
Abstract
Due to the complexity of wave breaking during the slamming process,the prediction of wave slam-ming load is a major difficulty in the numerical simulation of offshore platform.Based on the Cartesian grid method,a three-dimensional numerical model for simulating the wave slamming process of offshore platforms was established in this paper.On the basis of the numerical method of the model,the accuracy of the model on wave generation and wave damping was verified.Then a semi-submersible platform was simulated to verify the accuracy of the model to simulate the wave slamming process.Finally,the model was used to investigate the wave slamming process of a four-column offshore platform.The results show that the present model is able to simulate wave breaking,run-up and slamming greatly in the process of wave slamming.
关键词
海洋平台/波浪砰击/直角网格Key words
offshore platform/wave slamming/Cartesian grid引用本文复制引用
基金项目
山东省自然科学基金(ZR2023QE063)
出版年
2024
NETL
NSTL
万方数据