潜艇围壳填角几何外形的水动力特性研究
Research on hydrodynamic characteristics of the geometric shape of submarine fairwater fillet
邹利鑫 1杨爱玲 1陈二云 1向伟华1
作者信息
- 1. 上海理工大学能源与动力工程学院,上海 200093
- 折叠
摘要
围壳填角几何外形对潜艇水动力特性有重要影响.基于SUBOFF全附体潜艇模型,采用RNG k-ε湍流模型对含有3种不同类型围壳填角的SUBOFF潜艇绕流场进行数值计算,研究围壳填角几何外形对围壳附近马蹄涡的产生、强度以及潜艇尾部伴流场的影响.结果表明,平滑过度的围壳填角有效抑制了马蹄涡的产生,降低了潜艇尾部伴流流向速度分量的不均匀度;含凸型围壳填角的潜艇模型达到的效果最优,其在尾部伴流场处流向速度分量不均匀度的最高下降幅度为24.5％.
Abstract
The geometric shape of submarine fairwater the had an important influence on the hydrodynamic character-istics of the submarine.In this article,based on the fully appended SUBOFF model,the RNG k-ε turbulence model was used to numerically calculate the winding field of SUBOFF model with three different types of fairwater fillet to study the ef-fect of geometric shape of fairwater on the generation and intensity of horseshoe vortices near the fairwater and wake flow field of the submarine.The results show that the smooth and excessive fairwater fillet effectively suppressed the generation of horseshoe vortex and reduced the inhomogeneity of the velocity component of the wake flow.The submarine model with convex fairwater fillet achieved the best results with a maximum reduction of 24.5％in the inhomogeneity of the flow velo-city components at the wake flow field.
关键词
潜艇/围壳填角/马蹄涡/潜艇尾流Key words
submarine/fairwater fillet/horseshoe vortex/submarine wake引用本文复制引用
出版年
2024
NETL
NSTL
万方数据