带锥形空化器超空泡航行体的空泡与力学特性  

Cavity and hydrodynamic features of supercavitating vehicle with conical cavitator

作　　者：栗夫园 党建军[1] 张宇文[1] LI Fuyuan DANG Jianjun ZHANG Yuwen(School of Marine Science and Technology, Northwestern Polytechnical University, Xi＇an, Shaanxi 710072, China)

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《江苏大学学报（自然科学版）》2017年第2期161-167,共7页Journal of Jiangsu University：Natural Science Edition

基　　金：国家重点基础研究发展计划项目(A2720060294);西北工业大学基础研究基金资助项目(JC20110209)

摘　　要：为了研究带锥形空化器的超空泡航行体的空泡形态与流体动力之间的关系,以及锥形空化器与尾裙结构对航行体性能的影响,通过数值计算方式,对航行体模型在常用空泡流型下进行了仿真,研究了带锥形空化器航行体的空泡形态与攻角之间的关系以及相对应的流体动力的特性,论证了超空泡航行体空泡形态变化过程的普遍性,分析了大攻角时空化器的空泡与航行体空泡之间的差异,从流体动力方面对超空泡航行体的锥形空化器和尾裙之间的配合性进行了研究.结果表明,超空泡航行体流体动力与沾湿状态随攻角变化有特定的变化规律,锥形空化器与尾裙配合的结构在自导超空泡航行体上能够提高航行体的机动性能.To investigate the relationship between cavity shape and hydrodynamic of supercavitating vehicle with conical cavitator and discuss the effects of conical cavitator and tail skirt on vehicle performance,the relationship between cavitation shape and attack angle was analyzed. The fluid dynamic with corresponding cavity shape was also discussed. The universality of cavity shape during changing process was demonstrated,and the difference between cavitator cavity and vehicle cavity at high attack angle was analyzed. The coordination between conical cavitator and tail skirt of supercavitating vehicle was investigated based on the hydrodynamic force. The results show that the hydrodynamic has strong correlation with cavity shape,and it shows certain variation law with attack angle. The structure of conical cavitator with tail skirt can improve the mobility of self-guide vehicle.

关 键 词：超空泡航行体 锥形空化器 流体动力 自导 数值仿真 

分 类 号：O352[理学—流体力学]