水下无人系统学报2019，Vol.27Issue(1)：51-58,8.DOI:10.11993/j.issn.2096-3920.2019.01.009
一种基于独立膨胀原理的三维超空泡形态计算方法
A Calculation Method of Three-Dimensional Supercavity Shape Based on the Principle of Independent Expansion
宋书龙 1万亚民 2李建辰 1周景军 1吕瑞1
作者信息
- 1. 中国船舶重工集团公司第705 研究所, 陕西西安, 710077
- 2. 水下信息与控制重点实验室, 陕西西安, 710077
- 折叠
摘要
Abstract
In view of the problem that the fluid dynamics calculation of supercavity torpedo maneuvering needs to accurately predict the three-dimensional supercavity shape in real time, a three-dimensional unsteady supercavity shape calculation method is presented based on the independent expansion principle of cavity section. The reasonability of the method is testified by comparing with the Logvinovich model and the computational fluid dynamics(CFD) numerical simulation method. The three-dimensional supercavity shapes of a torpedo in velocity-variable motion, depth-variable motion, horizontal-longitudinal plane motion along sinusoidal trajectory, and spiral motion in three-dimensional space are simulated and analyzed by the proposed method. Simulation results show that this method can predict three-dimensional unsteady supercavity shape of a torpedo moving along any trajectory. Compared with the Logvinovich model and the CFD numerical simulation method, this method can solve the three-dimensional supercavity shape with more comprehensive information and can save a large amount of computing resource. It is concluded that the present method can rapidly provide time-varying three-dimensional supercavity shape for engineering practice and provide a reference for the establishment of dynamic model of supercavity torpedo.关键词
超空泡鱼雷/独立膨胀原理/三维超空泡形态/流体动力Key words
supercavity torpedo/independent expansion principle/three-dimensional supercavity shape/fluid dynamics分类
军事科技引用本文复制引用
宋书龙,万亚民,李建辰,周景军,吕瑞..一种基于独立膨胀原理的三维超空泡形态计算方法[J].水下无人系统学报,2019,27(1):51-58,8.
