水下超空泡航行体流体动力设计原理研究

在对航行体超空泡生成、流型和稳定性水洞模型实验研究的基础上，从航行体运动力学原理出发，研究了超空泡航行体流体动力设计需要解决运动平衡、稳定性与可控制等基本问题．给出了超空泡航行体流体动力设计原理、方法与实现途径；并提出了一种流体动力设计原理方案，设计加工了实验模型，在水洞中进行了验证实验。实验获得的航行体超空泡流型照片和流体动力曲线表明提出的超空泡航行体流体动力设计原理是正确的，方法是可行的。

On Hydrodynamic Design of Underwater Supercavitating High Speed Vehicle

Each of five references provides some useful information for hydrodynamic design of underwater supercavitating high speed vehicle. In this paper, we draw on information provided by Refs.1 through 5 and present comprehensively principles and methods of such design, which we explain in much detail. In order to check the validity of our proposed design principles and methods, we planned carefully water tunnel model experiments and carried them out in NPU high speed water tunnel. In this paper, we explain in some detail how we planned these experiments. One point we wish to emphasize is that we paid special attention to the generation of non-symmetrical supercavitating zone to satisfy the balance and stability of underwater supercavitating high speed vehicle. Photographs of cavity flow pattern of vehicle and hydrodynamic curves obtained in the experiments indicate preliminarily that our proposed design principles and methods are feasible.