摘要
根据国内外超空泡技术的研究现状,结合当前鱼雷的发展趋势,论证了发展超空泡鱼雷武器的必要性,研究了大空化数下锥形空化器减阻作用及空化器锥角对空泡的影响。在标准k-ε湍流模型、Mixture多项流模型下,利用Fluent软件分析空化器锥角对空泡的长度、厚度、初始生成位置的影响,分析了不同锥角下空化器减阻效果。仿真结果表明:空化器锥角的变化对空泡的长度影响较大,小角度锥形空化器能有效减小压差阻力,为超空泡鱼雷空化器设计提供理论依据。
This paper introduces the research status of supercavitation technology at home and abroad,and proves the necessity of developing supercavity torpedo weapon with the development trend of current torpedo. The effect of the reduction of the cone-shaped cavitator on the cavitation is studied. The effect of cone angle on the length,thickness and initial position of the cavitator was analyzed by Fluent software under the standard k-ε turbulence model and Mixture multi-stream model. The effect of drag reduction under different cone angle was analyzed. The simulation results show that the change of the cone angle of the cavitator has a great influence on the length of the cavities,and the small angle conical cavitator can effectively reduce the pressure resistance and provide the theoretical basis for the design of the supercavity torpedo caviator.
出处
《兵器装备工程学报》
CAS
2017年第6期57-61,共5页
Journal of Ordnance Equipment Engineering
关键词
超空泡
空化器
流体力学
数值模拟
supercavity
cavitator
hydrodynamics
numerical simulation
