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首页> 外文会议>International Conference on Offshore Mechanics and Arctic Engineering >NUMERICAL ANALYSIS FOR HYDRODYNAMIC MOTIONS OF FLOATING STRUCTURE USING MPS METHOD
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NUMERICAL ANALYSIS FOR HYDRODYNAMIC MOTIONS OF FLOATING STRUCTURE USING MPS METHOD

机译：使用MPS方法浮动结构流体动力运动的数值分析

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The authors started this research on estimation method of responses for floating structures using Computational Fluid Dynamics (CFD). This paper is first step, which has potential to be very valuable to the engineering community. The numerical method used in this study is the Moving Particle Semi-implicit (MPS) method, which is based on particles and their interactions. MPS method that was developed recently is one of particle method. The particle number density is implicitly required to be constant to satisfy incompressibility. A semi-implicit algorithm is used to for two dimensional incompressible non-viscous flow analysis. The particles whose particle number densities are below a set point are considered as on the free surface. In this paper, first, the authors explain the outline of MPS method that Kshizuka et al. developed. You can see more details of this method by references. And the calculation test of column collapse problem is carried out to check our code that we developed. Second, the modeling of free surfaces is explained. And the authors proposed the way to skip irregular data of wave height. Validation of wave profiles was carried out comparing Stokes theory. Third, calculation results of floating body are showed. This method of calculating response of floating structure is by Koshizuka et al. Finally, the authors show calculation results of wave exciting forces by MPS method comparing singular point distribution method (SDM).
机译：作者开始使用计算流体动力学（CFD）对浮动结构的估计方法研究。本文是第一步，这有可能对工程界非常有价值。本研究中使用的数值方法是运动颗粒半隐式（MPS）方法，其基于粒子及其相互作用。最近开发的MPS方法是粒子方法之一。隐含粒子数密度是恒定的，以满足不可压缩性。半隐式算法用于二维不可转换的非粘性流量分析。其颗粒数密度低于设定点的颗粒被认为是自由表面上的。本文首先，作者解释了Kshizuka等人的MPS方法的概要。发达。您可以通过引用查看此方法的更多详细信息。然后执行列崩溃问题的计算测试，以检查我们开发的代码。其次，解释自由表面的建模。作者提出了跳过波浪高度不规则数据的方法。波动概况的验证进行了比较斯托克斯理论。第三，显示了浮体的计算结果。这种计算浮动结构响应的方法是Koshizuka等人。最后，作者展示了MPS方法比较奇点分布法（SDM）的波励磁力的计算结果。

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