【摘要】 船舶与海洋结构物的上层建筑结构表面结冰现象，是较多水滴撞击冷壁面先形成水膜、然后积冰的结果，在较大风速下，水滴会更多地与垂直结构发生碰撞，水滴运动及冻结行为会对结构表面结冰过程及最终冰形产生较大影响。本文基于耦合VOF和Level–Set的VOSET气–液界面追踪方法以及焓–孔隙度相变方法，采用大系数法建立了水滴–孤立冷板单向耦合模型，实现了单水滴撞击孤立冷板冻结过程模拟，再现了空气卷吸现象，分析了水滴运动速度和构件表面润湿性等因素对结冰过程的影响，并进一步模拟了多水滴撞击垂直结构表面形成液膜并冻结的过程，相关结果可为上层建筑典型部件表面结冰的预测及防冰、除冰方法的研究提供技术支撑。更多还原

【Abstract】 The phenomenon of icing on the surface of superstructure of ships and marine structures is the result of a large number of water droplets impacting on the cold wall surface to form a water film and then accumulating ice. And surely, at a high wind speed more water droplets often collide with vertical structures.The movement and freezing behaviors of water droplets can have a significant effect on the icing process and final icing shape on the surface of the structures. Based on the VOSET gas-liquid interface tracking method coupling with VOF and Level-Set, and Enthalpy-Porosity phase change method, a unidirectional coupling model between water droplets and isolated cold plate was established using the large coefficient method.Simulation of the freezing process of a single water droplet impacting an isolated cold plate was achieved,and the phenomenon of the air entrainment was reproduced. The effects of factors such as water droplet velocity, component surface wettability on the freezing process were analyzed. The process of multiple water droplets impacting a vertical structure surface to form a liquid film and freeze was further simulated. The relevant results can provide technical support for the prediction of the typical component surface icing of superstructure and the study of anti-icing and de-icing methods.更多还原