摘要
针对目前水下航行器和空中航行器难以以单一外形同时满足水空两种航行环境的特点,提出一种通过改变机体外形实现水空介质跨越的新型航行器.应用FLUENT对航行器的气动水动特性进行数值仿真,得到了航行器水中、空中航行的阻力、升力曲线.对结果的分析发现,通过改变外形能够满足航行器水中、空中的航行和机动要求,新型航行器的流体受弹体扰动较大,升阻特性有一定减弱,水空跨介质航行器的外形还有较大的优化空间.
A new trans-media vehicle with variable shape is proposed for a vehicle with fixed shape cannot move in air and under water at the same time. The aerodynamic and hydrodynamic characteristics are numerical simulated based on FLUENT. Lift curves and drag curves of the trans-media vehicle in air and under water are got. The comparison results show that, variable shape can meet the requirements of moving and maneuvering in air and under water. The fluid through the body of new trans-media vehicle is strongly disturbed by the body, and it has a greater space for optimization.
出处
《数值计算与计算机应用》
CSCD
2016年第4期265-272,共8页
Journal on Numerical Methods and Computer Applications
关键词
跨介质航行器
数值仿真
气动特性
水动特性
trans-media vehicle
numerical simulation
aerodynamic characteristics
hydrodynamic characteristics
