极地船舶甲板海洋飞沫通量经验公式分析与修正方法研究

Study on empirical formula analysis and correction method for sea-spray flux on polar ship decks

  • 摘要:
    目的 针对海洋飞沫通量经验公式依赖特定船舶观测数据的缺陷,提出一种极地船舶甲板海洋飞沫通量经验公式的修正方法。
    方法 通过对经验公式进行参数特征分析,提出以具体船型的海洋飞沫通量数值解和相应环境条件为输入,对海洋飞沫通量经验公式进行修正。通过数值波浪形态和MFV渔船飞沫通量计算验证数值方法的可靠性。基于提出的方法对球鼻艏、破冰艏、飞剪艏和前倾艏4种船型的海洋飞沫通量经验公式进行修正。
    结果 渔船飞沫通量经验公式和数值解吻合良好。4种船型平均飞沫持续时间系数较为接近,且液态水含量系数与现有经验公式中的系数较为接近。
    结论 结果表明,所提方法具有针对不同船型修正海洋飞沫通量经验公式的能力。

     

    Abstract:
    Objectives To address the defect that the empirical formula of sea-spray flux depends on observation data from specific ships, this study proposes a correction method for the empirical formula of sea-spray flux on polar ship decks.
    Methods By analyzing the parameter characteristics of the empirical formula, it is proposed to modify the empirical formula of sea spray flux using numerical solutions of sea-spray flux for different ship types and corresponding environmental conditions as inputs. The reliability of the numerical method is verified through numerical wave profile and MFV fishing vessel spray flux calculations. Based on the proposed method, the empirical formulas of sea spray flux for four different ship types, such as bulbous bow, ice-resistant bow, clipper bow and raked bow, are modified.
    Results The theoretical and numerical solutions of the empirical formula for fishing vessel spray flux are in good agreement. The spray duration coefficients for the other four ship types are similar to each other, and the liquid water content coefficient is similar to the coefficient in the existing empirical formula.
    Conclusions The results show that the proposed method has the ability to correct the empirical formula of sea-spray flux for different ship types.

     

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