Multi-phase SPH modelling of air effect on the dynamic flooding of a damaged cabin
Multi-phase SPH modelling of air effect on the dynamic flooding of a damaged cabin
复制标题
空气对受损舱室动态进水影响的多相 SPH 建模
DOI：
10.1016/j.compfluid.2017.12.012
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发表时间：
2018-02
影响因子：
2.8
通讯作者：
Tao L.
中科院分区：
文献类型：
--
作者：
Cao X. Y.;Ming F. R.;Zhang A. M.;Tao L.
在动力浸水过程中，气流对破损船舶的响应有一定的影响。它不仅与入流量有关，而且与船舶的稳性有关。为了准确地预测受损船舶的响应，必须考虑空气的影响。在这项研究中，一个多相SPH模型结合虚拟边界方法提出。新的SPH模型在解决这个非线性问题时的优点之一是，它不依赖于其他算法来跟踪不同相的界面，而是可以轻松处理破碎、飞溅和混合。通过与实验结果和已发表的数值计算结果的比较，验证了数值模型的稳定性和准确性。进一步研究了淹没过程中捕获的空气，重点是开口附近的空气和水的交换。最后分析了甲板开孔的大小和数量对气流流动的影响。结果表明，空气流可以减小进水动能，从而减小进水形成的动力矩，减小破损舱室的下沉速率。
The air flow may take effects on the responses of the damaged ship in the dynamic flooding process. It not only relates to the amount of inflow but also the stability of the ship. In order to accurately predict the responses of a damaged ship, it is essential to take the air into account. In this study, a multi-phase SPH model combined with a dummy boundary method is proposed. One of the advantages of the new SPH model in solving this nonlinear problem is that, it does not rely on other algorithms to track the interface of different phases but can easily deal with breaking, splashing and mixing. The stability and accuracy of the numerical model are verified by comparing with experimental and published numerical results. The air captured in the flooding process is further studied with focus on the exchange of air and water near the opening. Finally, the effects of the sizes and number of the deck openings on the air flow are analyzed. It is found that the air flow can reduce the kinematic energy of inflow water, leading to decreases in the dynamic moment formed by the flooding water and sinking rate of damaged cabin.
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DOI：
--
发表时间：
2009
期刊：
--
影响因子：
--
作者：
C. Strasser;A. Jasionowski;D. Vassalos
通讯作者：
C. Strasser;A. Jasionowski;D. Vassalos
光滑粒子流体动力学及其在流固耦合中的应用
影响因子：
2.5
作者：
张阿漫;孙鹏楠;明付仁;A.Colagrossi
通讯作者：
A.Colagrossi
基于实验和SPH方法的船舶与进水耦合动力学研究
影响因子：
4.6
作者：
Cheng H;Zhang A M;Ming F R
通讯作者：
Ming F R
DOI：
--
发表时间：
2008
期刊：
--
影响因子：
--
作者：
G. Hearn;D. Lafforgue;E. Perdriset;D. Saydan
通讯作者：
G. Hearn;D. Lafforgue;E. Perdriset;D. Saydan
影响因子：
2.4
作者：
Nugent, S;Posch, HA
通讯作者：
Posch, HA