摘要
基于ANSYS/LS-DYNA的ALE方法,对圆盘击水滑跳现象进行三维数值仿真。建立了击水滑跳的有限元模型,包括滑跳对象、两相流及交界面设计,并用已有试验数据对模型运动状态的有效性进行了验证。分析结果表明,计算得到的滑跳临界速度和入水角随圆盘倾角的变化规律与试验结果可以很好的吻合,研究结果可以为入水冲击,气/液两相跨介质运动及其动力学特性提供一种研究方法与手段。
Based on the ALE method in ANSYS/LS-DYNA, the numerical simulation of skipping disk is establisished. The skipping fi- nite element model including the skipping object, two phase flow and interface, use the exiting test results to verify. The results showed that the rules between the critical bounce speed and tilt angle, the angle of water entry and the tilt angle is consistent with test results, the finite element model can be used to water impact, air/water motion and dynamics research.
出处
《舰船电子工程》
2013年第1期122-124,共3页
Ship Electronic Engineering
关键词
跨介质运动
有限元模型
ALE数值仿真
滑跳
trans-media movement, finite element model, arbitrary Lagrangian-Eulerian, numerical simulation, slide jump
