船舶压载水管内取样方案分析

本文对国际海事组织的污染防控与响应分委会于2017年12月召开的第五次会议中有关国家与组织提出的若干船舶压载水管内取样方式进行了总结。结合流体动力学基本知识对各方案进行评述，本文对目前压载水管内取样的位置、流态提出了可行性建议，认为压载水管系内取样应在避开管系弯折、且充分发展的湍流下进行。对于目前尚未明确的问题，本文提出了可能的研究方向以及可供参考的其他领域类似问题。

Discussion on In-line Ballast Water Sampling for Ships

This study summarised the proposals of ballast water sampling method raised by corresponding states and organisations in the 5th Session of the Sub-Committee on Pollution Prevention and Response in International Maritime Organization in December 2017. Based on the critical review in accordance with the fundamental methods of fluid dynamics, this study presented feasible suggestions regarding the location and flow type of in-line ballast water sampling. The sampling is recommended to be conducted in fully-turbulent flow avoiding the bending area of the piping system. For the uncertain matters, possible research directions and referenceable issues in other fields are recommended.