指挥台围壳流场和水动力噪声数值模拟  

Numerical simulation on flow field and hydrodynamic noise of sail

作　　者：潘龙德 崔立林[1] 章文文 程果[1] PAN Long-de;CUI Li-lin;ZHANG Wen-wen;CHENG Guo(Institute of Vibration and Sound,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学振动与噪声研究所,湖北武汉430033

出　　处：《舰船科学技术》2023年第10期12-18,共7页Ship Science and Technology

基　　金：国家自然科学基金资助项目(11904407)。

摘　　要：为减小指挥台围壳水动力噪声,对具有5种不同相对厚度指挥台围壳的潜艇模型进行数值模拟计算,探究不同指挥台围壳相对厚度对潜艇绕流场和水动力噪声的影响规律。首先对标准模型进行数值计算,并与试验数据对比,验证了数值计算方法的准确性,在此基础上进行流场非定常数值模拟计算。计算结果表明:采用的数值计算方法可以准确对潜艇的真实流场进行模拟计算;指挥台围壳相对厚度对潜艇绕流场的影响不是单调的。潜艇指挥台围壳根部特征点处的水动力噪声不是随着相对厚度的增加而增大,而是呈现先增大后减小的规律。In order to reduce the hydrodynamic noise of the sail,the submarine models with five different relative thicknesses of the sail are numerically simulated to explore the influence of the relative thickness of the sail on the flow field and hydrodynamic noise of the submarine.First of all,the numerical calculation of the standard model is carried out,and compared with the experimental data,the accuracy of the numerical calculation method is verified,on the basis of which the unsteady numerical simulation of the flow field is carried out.The results show that the numerical calculation method can accurately simulate the real flow field of the submarine,and the influence of the relative thickness of the sail on the flow field around the submarine is not monotonous.The hydrodynamic noise at the characteristic point of the root of the sail does not increase with the increase of the relative thickness,but increases at first and then decreases.

关 键 词：指挥台围壳 数值模拟 IDDES 水动力噪声 

分 类 号：U663.2[交通运输工程—船舶及航道工程]