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A Framework of Numerically Evaluating a Maneuvering Vessel in Waves
Journal of Marine Science and Engineering ( IF 2.9 ) Pub Date : 2020-05-29 , DOI: 10.3390/jmse8060392
Zhitian Xie , Jeffrey Falzarano , Hao Wang

Maneuvering in waves is a hydrodynamic phenomenon that involves both seakeeping and maneuvering problems. The environmental loads, such as waves, wind, and current, have a significant impact on a maneuvering vessel, which makes it more complex than maneuvering in calm water. Wave effects are perhaps the most important factor amongst these environmental loads. In this research, a framework has been developed that simultaneously incorporates the maneuvering and seakeeping aspects that includes the hydrodynamics effects corresponding to both. To numerically evaluate the second‑order wave loads in the seakeeping problem, a derivation has been presented with a discussion and the Neumann‑Kelvin linearization has been applied to consider the wave drift damping effect. The maneuvering evaluations of the KVLCC (KRISO Very Large Crude Carrier) and KCS (KRISO Container Ship) models in calm water and waves have been conducted and compared with the model tests. Through the comparison with the experimental results, this framework had been proven to provide a convincing numerical prediction of the horizontal motions for a maneuvering vessel in waves. The current framework can be extended and contribute to the IMO (International Maritime Organization) standards for determining the minimum propulsion power to maintain the maneuverability of vessels in adverse conditions.

中文翻译:

波浪中机动船的数值评估框架

波浪操纵是一种水动力现象,涉及海上维护和操纵问题。诸如波浪,风和海流等环境负荷对机动船具有重大影响,这使其比在平静水中机动更为复杂。在这些环境负荷中,波浪效应可能是最重要的因素。在这项研究中,开发了一个框架,该框架同时包含机动和海上维护方面,其中包括与这两者相对应的流体动力学效应。为了对海上维护问题中的二阶波浪载荷进行数值评估,已经进行了推导并进行了讨论,并且已将Neumann-Kelvin线性化应用于考虑波浪漂移的阻尼效应。已经在平静的水面和波浪中对KVLCC(KRISO超大型原油运输船)和KCS(KRISO集装箱船)模型进行了机动评估,并与模型试验进行了比较。通过与实验结果的比较,该框架已被证明可以为波浪中的操纵船提供令人信服的水平运动数值预测。可以扩展当前框架,并有助于IMO(国际海事组织)标准,以确定在不利条件下维持船舶操纵性的最小推进力。该框架已被证明可以为波浪中的操纵船提供令人信服的水平运动数值预测。可以扩展当前框架,并有助于IMO(国际海事组织)标准,以确定在不利条件下维持船舶操纵性的最小推进力。该框架已被证明可以为波浪中的操纵船提供令人信服的水平运动数值预测。可以扩展当前框架,并有助于IMO(国际海事组织)标准,以确定在不利条件下维持船舶操纵性的最小推进力。
更新日期:2020-05-29
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