豪华邮轮上层建筑开敞区域流场特性分析

Analysis of flow field characteristics in upper open area of luxury cruise ship

  • 摘要:
    目的 豪华邮轮上层建筑开敞区域具有复杂的空间布置及外观造型,需精确模拟开敞区域的风载荷与流场特征以指导邮轮设计。
    方法 采用雷诺时均(RANS)方法中的Realizable kε湍流模型和类子结构法模拟思路,对邮轮整船及上层建筑开敞区域的流场特性进行数值模拟,并开展风洞实验进行验证。
    结果 研究表明,上层建筑开敞区域的外型及空间布置对邮轮的流场特性具有重要影响,提出的类子结构法模拟思路可以精确模拟局部区域的流场特性。
    结论 在设计邮轮时,应使上层建筑整体造型呈流线型,且开敞区域相邻结构之间的高度差和间距不宜过大,所做研究对邮轮设计具有指导作用。

     

    Abstract:
    Objective The open area of the superstructure of a luxury cruise ship has a complex spatial layout and appearance modeling. In this study, the wind load and flow field characteristics in this area are accurately simulated to guide cruise ship design.
    Methods The realizable k−ε turbulence model and substructure method in the Reynolds time-average method are used to numerically simulate the flow field characteristics of the whole cruise ship and the open area of the superstructure, and wind tunnel experiments are carried out for verification.
    Results The appearance and spatial layout of the open area of the superstructure have an important impact on the flow field characteristics of the cruise ship, and the substructure simulation method can accurately simulate the flow field characteristics of the local area.
    Conclusions When designing cruise ships, the overall shape of the superstructure should be streamlined and the height difference and spacing between adjacent structures in the open area should not be too large. The results of this study can provide guiding references for cruise ship design.

     

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