THE USE OF A VOLUME OF FLUID (VOF) METHOD COUPLED TO A TIME DOMAIN MOTION SIMULATION TO CALCULATE THE MOTIONS OF A SUBSEA STRUCTURE LIFTED THROUGH THE SPLASH ZONE

机译：结合时域运动模拟使用流体体积（VOF）方法计算通过飞溅区抬起的地面结构的运动

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Existing simulation methods are not able to determine in detail the wave loads on and the motions of a complex subsea structure when it is passing through the splash zone. To determine these loads and motions, model tests are necessary. Otherwise only simplified formulations or empirical relations for added mass and damping can be used. The improved Volume Of Fluid (iVOF) method presented in this paper is capable of predicting the behaviour of a subsea structure in the splash zone. The simulated flow around and through the structure looks very realistic and shows a strong resemblance with observations from model tests. The quantitative comparison of the load variations in the hoist wire of the subsea structure shows that the total load levels and dynamics of the subsea structure are well predicted. This good comparison shows the potential of the improved Volume Of Fluid (iVOF) method for the simulation of the behaviour of subsea structures in the splash zone. However, significant further development is needed before long simulations in irregular waves can be carried out. At the moment, the method is limited to short runs (regular waves) because of the long simulation times required at the moment.

机译：现有的模拟方法无法详细确定复杂海底结构通过飞溅区时的波浪载荷和运动。为了确定这些载荷和运动，必须进行模型测试。否则，只能使用简化的公式或增加质量和阻尼的经验关系。本文提出的改进的流体体积（iVOF）方法能够预测飞溅区域中海底结构的行为。围绕结构并通过结构的模拟流看起来非常逼真，并且与模型测试的观察结果非常相似。水下结构的提升钢丝绳中载荷变化的定量比较表明，可以很好地预测海底结构的总载荷水平和动力学。良好的对比显示了改进的“流体体积”（iVOF）方法在模拟飞溅区海底结构行为方面的潜力。但是，在可以对不规则波进行长时间仿真之前，还需要进一步的开发。目前，由于目前所需的模拟时间较长，因此该方法仅限于短期运行（规则波）。

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《25th International Conference on Offshore Mechanics and Arctic Engineering 2006(OMAE2006) vol.4》|2006年|839-846|共8页
会议地点 Hamburg(DE)
作者
Tim Bunnik; Bas Buchner; Arthur Veldman;
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MARIN (Maritime Research Institute Netherlands) Haagsteeg 2 / P.O. Box 28 6700 AA Wageningen, The Netherlands;

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原文格式 PDF
正文语种 eng
中图分类海洋工程;
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THE USE OF A VOLUME OF FLUID (VOF) METHOD COUPLED TO A TIME DOMAIN MOTION SIMULATION TO CALCULATE THE MOTIONS OF A SUBSEA STRUCTURE LIFTED THROUGH THE SPLASH ZONE

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