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首页> 外文期刊>Ocean engineering >The influence of an annular moonpool on towing resistance of a separated polar ocean nuclear energy platform
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The influence of an annular moonpool on towing resistance of a separated polar ocean nuclear energy platform

机译：The influence of an annular moonpool on towing resistance of a separated polar ocean nuclear energy platform

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Offshore nuclear energy platforms may need to be pulled to ports for refueling every 2-3 years. At the initial stages of platform design, the towing resistance of the platforms must be studied. And the platform's towing resistance will be impacted by the moonpool. In this article, the moonpool of a separated polar ocean nuclear energy platform, originally circular, has become annular due to the presence of a floating body. This paper employs both numerical and model test approaches to investigate the impact of the annular moonpool on the towing resistance of the platform. The results demonstrate that a sequence of vortices will form inside the moonpool, and the moonpool will disrupt the flow field around the platform, increasing the platform's circumferential dynamic pressure and differential pressure resistance. As a result, the moonpool will eventually lead to a 6%-7% increase in overall towing resistance. And the frictional resistance only makes up a minor portion of the overall resistance of the two platforms because the two platforms aren't streamlined structures; instead, the differential pressure resistance makes up the majority of the total resistance. The results of the study provide a reference for calculating towing resistance for large conical platforms.

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