岛礁地形下半潜平台水动力性能研究

摘要

The hydrodynamic performance of a semi-submersible platform positioned near a reef island is investigated both numerically and experimentally. The numerical results of the platform motions are compared with experimental data, which indicates that by considering the hydrodynamic interaction between the plat-form and the reef island in a conventional linear wave theory based on numerical method, the hydrodynam-ics and motions of the semi-submersible platform near the reef island can be numerically computed with a reasonable agreement with experimental data.%文章基于一岛礁实地的地形数据，针对该地形下的半潜式平台进行了水动力及运动响应分析，重点研究了岛礁地形对平台运动响应的影响，并结合模型试验结果进行了对比分析。结果表明应用目前常用的以线性波浪理论为基础的数值方法，通过引入对地形与平台之间的绕射与辐射水动力的干扰计算，可以对岛礁地形下的半潜平台进行水动力和运动分析。研究所得到的岛礁条件下的平台运动响应结果与模型试验值对比较为吻合。