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 - \varepsilon $湍流模型对含有3种不同类型围壳填角的SUBOFF潜艇绕流场进行数值计算，研究围壳填角几何外形对围壳附近马蹄涡的产生、强度以及潜艇尾部伴流场的影响。结果表明，平滑过度的围壳填角有效抑制了马蹄涡的产生，降低了潜艇尾部伴流流向速度分量的不均匀度；含凸型围壳填角的潜艇模型达到的效果最优，其在尾部伴流场处流向速度分量不均匀度的最高下降幅度为24.5%。
The geometric shape of submarine fairwater the had an important influence on the hydrodynamic characteristics of the submarine. In this article, based on the fully appended SUBOFF model, the RNG$k - \varepsilon $ turbulence model was used to numerically calculate the winding field of SUBOFF model with three different types of fairwater fillet to study the effect 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 velocity components at the wake flow field.
2024,46(9): 46-52 收稿日期：2023-06-29
DOI：10.3404/j.issn.1672-7649.2024.09.008
分类号：U661.3
基金项目：国家自然科学基金资助项目（51106099）
作者简介：邹利鑫（1998 – ），男，硕士，研究方向为船舶水动力学
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