尺度效应是船舶水动力学研究的一个关键问题。目前，对船舶尺度效应的研究大多集中在阻力性能方面。本文针对水下航行体操纵性能评估的需要，对水下航行体操舵水动力性能的尺度效应进行探讨。以典型潜艇模型SUBOFF为研究对象，采用计算流体动力学方法对不同尺度下的直航操舵试验进行数值模拟，分析网格尺度对不同尺度计算结果的影响。在此基础上，探讨不同尺度下的潜艇绕流场特性，以及作用在潜艇上的水动力及力矩变化规律，对于研究水下航行体操纵性能的尺度效应问题具有一定的借鉴意义。
Scale effect is a key issue in the study of ship hydrodynamics. Most relevant studies focus on the ship resistance performance. Aiming at the requirement of the maneuverability evaluation of the underwater vehicle during navigation, the scale effect of the steering hydrodynamic forces of the underwater vehicle is explored in this study. Taking the typical submarine model SUBOFF as the study object, the steering test under the straight-ahead condition is simulated by using Computational Fluid Dynamics (CFD) method. The effect of grid spacing on the numerical results is analyzed. On this basis, the local flow fields around the submarine model under different scales are analyzed, as well as the variation of hydrodynamic forces and moment acting on the submarine model. Overall, this work can be used as a reference for the study of scale effect of underwater vehicle.
2023,45(10): 5-11 收稿日期：2022-10-24
DOI：10.3404/j.issn.1672-7649.2023.10.002
分类号：U661.1
基金项目：国家自然科学基金资助项目(52201367)；水动力学国家重点实验室开放基金(6142203210101)
作者简介：祁江涛(1982-),男,硕士,高级工程师,研究方向为船舶水动力学
