潜艇近水面航行自由液面干扰效应数值研究  

Numerical study on submarine’s hydrodynamic performance for near-surface conditions

作　　者：王陆 毕毅[1] 周广礼 向国 欧勇鹏[1] WANG Lu;BI Yi;ZHOU Guang-li;XIANG Guo;OU Yong-peng(College of Naval Architecture and Ocean,Naval University of Engineering,Wuhan 430033,China;No.92578 Unit of PLA,Beijing 100161,China)

机构地区：[1]海军工程大学舰船与海洋学院,湖北武汉430033 [2]中国人民解放军92578部队,北京100161

出　　处：《舰船科学技术》2021年第1期83-88,共6页Ship Science and Technology

基　　金：国家自然科学基金资助项目(51509256);国家部委基金资助项目(9140A14030712JB11044)。

摘　　要：针对潜艇近水面航行艇体水动力呈现显著变化的问题,本文在验证数值计算方法可行性的基础上,开展不同潜深及航速下潜艇粘性流场的数值模拟,获取艇体阻力、垂向力及纵倾力矩随水深及航速的变化规律。模拟结果表明:潜深是影响潜艇近水面与深水状态水动力性能差异的决定性因素,当潜深与艇体直径的比值H/D≤1.3时,近水面效应显著;而当H/D≥2.9时,可认为潜艇水动力性能与深水状态无显著差异;近自由液面条件下(H/D≤1.3),潜艇所受阻力及垂向力系数随航速的增大均呈现明显波动现象,这主要是由于自由面的兴波干扰使得艇体表面压力变化所引起。Aiming at the problem that the hydrodynamic force of submarine’s near-surface sailing hull presents significant changes,numerical simulation of a submarine in various diving depths and advancing velocities were carried out based on verified method.Hydrodynamic performance,including resistance,vertical force and trimming moment,was obtained to analysis the near-surface effect.Calculation results indicate that:Diving depth is the conclusive factor for near-surface submarine comparied with deep-water condition.When the ratio between diving depth and submarine’s diameter was less than1.3(H/D≤1.3),the free surface effect was remarkable and with H/D≥2.9,there was little difference between near-surface and infinite deep water condition for submarine’s hydrodynamic performance.For near-surface conditions(H/D≤1.3),the resistance and vertical force coefficients fluctuated with advancing velocities obviously.This phenomenon was mainly caused by the variation of submarine’s pressure distribution,which was aroused by free-surface wave.

关 键 词：潜艇 近水面 文丘里效应 水动力性能 数值模拟 

分 类 号：U661.32[交通运输工程—船舶及航道工程]