锥形空化器流体动力特性研究  

Research on Hydrodynamic Characteristics of Conical Cavitator

作　　者：栗夫园 张宇文[1] 党建军[1] 滕鹏桦[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《兵工学报》2014年第7期1040-1044,共5页Acta Armamentarii

基　　金：国家重点基础研究项目(A2720060294)

摘　　要：为探究锥形空化器所具有的水动力学特性,在水洞中开展空化器系列实验研究,得到了不同锥角空化器的水动力参数。分析了锥形空化器的锥角对航行体流体动力特性的影响;给出了锥形空化器截平头时的动力学特性及不同截平头面积下的阻力变化。研究结果表明:锥形空化器的锥角大小影响空化器阻力系数和升力系数的大小;不同锥角下空化器升力系数位置导数相差较大;截平头面积较小时对航行体阻力系数影响较小,可以近似为全锥空化器。文中的实验结果对锥形空化器的选型应用以及超空泡航行体的控制特性分析具有参考价值。In order to explore the hydrodynamic characteristics of conical cavitator, the experimental study of conical eavitators with different cone angles in water tunnel is conducted to obtain their hydrodynamic parameters. The influence of cone angle on hydrodynamic characteristics is analyzed. The hydrodynamic characteristics of conical cavitator with fiat head and the drags under different fiat head areas are also studied. The results show that the cone angle has effect on drag and lift coefficients; the position derivatives of lift coefficient are distinct at different cone angles; and the drag coefficient dose not change obviously. The cavitator can be approximated as a full conical cavitator when the flat head area is small. The experimental results provide a reference for practical use of conical cavitator and analysis of control characteristics of supercavity vehicle.

关 键 词：流体力学 锥形空化器 阻力系数 升力系数 流体动力特性 位置导数 

分 类 号：O35[理学—流体力学]