摘要
穿越自由液面过程中航行体表面携带的附着水层会对分离物体受力及分离运动产生重要影响。首先采用流体体积方法(Volume of Fluid,VOF)建立了圆柱运动的刚体动力学方程和气液两相流动N-S方程的耦合求解模型,基于试验数据验证了算法的准确性。在此基础上,开展了不同外形物体穿越有限水层的计算分析。研究了不同形状、结构质量、运动形式、水层厚度等因素对物体穿越有限水层的受力情况和运动变化规律。
While underwater vehicle crossing free surface,the deformation of attached water layer is one of complex phenomena during water exiting.After water exit,the separation of tail cap occur in the water layer,which has a great impact on the hydrodynamic force and the separation movement.In this paper,the MAC method is used simulate free water surface,the couple solving of multi-phase flow N-S equation and cylinder object moving equation has been conducted.Base on experimental data,the accuracy of present method has been proven.By the method,the different shape object traversing finite water layer are calculated and analyzed.The hydrodynamic force and movement during crossing water layer has been researched on the impact of different factors,which include object shape,weight of object,motion form and distribution of water layer.
作者
张耐民
裴金亮
赵阳
尤天庆
刘元清
Zhang Nai-min;Pei Jin-liang;Zhao Yang;You Tian-qing;Liu Yuan-qing(Harbin Institute of Technology, Harbin, 150001;Beijing Institute of Astronautical Systems Engineering, Beijing, 100076)
出处
《导弹与航天运载技术》
CSCD
北大核心
2018年第1期12-17,共6页
Missiles and Space Vehicles
