摘要
采用计算流体力学方法和ICEM CFD软件对不同沉底姿态时的驻留航行器模型进行结构化网格划分,利用CFX软件对其在不同海底来流速度下的流场进行数值模拟与分析,建立了分析驻留航行器沉底稳定性的数学模型,并结合仿真结果分析了海底来流速度和沉底姿态对驻留航行器沉底稳定性的影响.结果表明:在0.514m/s的海底来流速度下,驻留航行器能够保持沉底的稳定性;在1.028m/s及以上的海底来流速度下,驻留航行器不能够保持沉底的稳定性.
The sink stability of unmanned underwater lurk vehicle （UULV） was studied by using the computational fluid dynamics. First, the hexahedral mesh of the UULV in different sinking model was generated by ICEM CFD. Then the variation tendency of lateral force, lift force and rolling moment under different submarine speeds was gotten by using CFX. Based on the force analysis a mathematical model for the analysis of sink-UULV was established. Last, the effect of submarine speed and sinking model on UULV＇s sink-stability was gotten through combining the numerical simulation＇s result with that of math model. The result shows that the UULV can remain stable under 0. 514 m/s submarine speed, it will be rolling-over when the speed is equal to or greater than 1. 028 m/s.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2012年第9期1493-1497,共5页
Journal of Shanghai Jiaotong University
基金
教育部新世纪优秀人才支持计划资助项目(NCET-09-0074)
关键词
驻留航行器
沉底稳定性
结构化网格
仿真
unmanned underwater lurk vehicle （UULV）
sink stability
hexahedral mesh
simulation
