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浙江大学学报(工学版)
浙江大学学报(工学版)  2021, Vol. 55 Issue (4): 767-774    DOI: 10.3785/j.issn.1008-973X.2021.04.020
机械与能源工程     
DTMB 4119螺旋桨噪声特性的数值模拟
詹志文(),张凌新*(),邓见,邵雪明
浙江大学 航空航天学院，浙江 杭州 310027
Numerical simulation of acoustic characteristics on DTMB 4119 propeller
Zhi-wen ZHAN(),Ling-xin ZHANG*(),Jian DENG,Xue-ming SHAO
School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China
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摘要：

将DTMB 4119型螺旋桨作为研究对象，在敞水和伴流条件下分别计算水动力学特性和非空化噪声声压级. 在多个进速系数下对单桨模型的敞水性能展开验证，与文献实验值比对验证准确性后，引入FW-H声类比方程求解监测点声压及频谱. 结果表明，现有模型可以在多个进速系数下取得较吻合的数值结果；单极子和偶极子噪声频谱在低频段出现显著高于宽带的线谱噪声，频率与桨叶BPF及谐波对应. 在轴向平面内，单极子噪声声压级呈现出8字形的分布特征，偶极子噪声声压级呈现出∞型的指向性分布. 伴流场不会改变单、偶极子总声压级的指向性，但会使得各方向线谱噪声声压级趋于均匀. 在径向平面内，单、偶极子的噪声声压级指向性不明显.
关键词： DTMB 4119;  水动力学性能;  非空化噪声;  声类比    
Abstract:

The hydrodynamic characteristics and non-cavitation noise sound pressure level were calculated considering open-water and wake flow conditions by taking DTMB 4119 propeller as research object. The open-water performance of single propeller was verified under various advance ratios by comparing with the literature experiment results. Then the FW-H analogy equation was introduced to calculate the acoustic pressure of the probes and their spectra. Results showed that the numerical results accorded well with the previous experiments in hydrodynamic performance for different advance ratios. The monopole and dipole noise spectra present marked tonal noise with higher sound pressure level than broadband spectra. Their frequencies corresponded to the blade BPF and its harmonics. The monopole noise presents apparent figure-8 source directivity distributions, and that of the dipole noise presents figure-∞ distributions in the axial plane. The wake field will not change the directivity of total sound pressure level of monopole and dipole, but it will make the sound pressure level of tonal noise in each direction tend to be uniform. The noise directivities of monopole and dipole are no longer obvious in the radial plane.
Key words: DTMB 4119    hydrodynamic performance    non-cavitation noise    acoustic analogy
收稿日期: 2020-10-19 出版日期: 2021-05-07
CLC:  TK 5  
基金资助: 国家自然科学基金资助项目(91852204，11772298)
通讯作者: 张凌新     E-mail: zhanzhiwen@zju.edu.cn;zhanglingxin@zju.edu.cn
作者简介: 詹志文(1995—)，男，硕士生，从事螺旋桨噪声数值的研究. orcid.org/0000-0002-1450-7190. E-mail： zhanzhiwen@zju.edu.cn
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引用本文:

詹志文,张凌新,邓见,邵雪明. DTMB 4119螺旋桨噪声特性的数值模拟[J]. 浙江大学学报(工学版), 2021, 55(4): 767-774.

Zhi-wen ZHAN,Ling-xin ZHANG,Jian DENG,Xue-ming SHAO. Numerical simulation of acoustic characteristics on DTMB 4119 propeller. Journal of ZheJiang University (Engineering Science), 2021, 55(4): 767-774.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2021.04.020    或    http://www.zjujournals.com/eng/CN/Y2021/V55/I4/767

图 1  艇和桨模型计算域布置示意图
图 2  纵截面网格示意图
工况 kt 10 kq
实验值 0.1487 0.280
网格A 0.1370 0.278
网格B 0.1372 0.280
网格C 0.1386 0.280
网格D 0.1386 0.280
表 1  单桨模型的网格独立性验证
图 3  A和B类监测点位置分布
图 4  DTMB 4119模型的敞水性能验证
图 5  DTMB 4119模型r=0.7R处截线的压力系数分布对比
图 6  均匀流下桨叶测点噪声声压级频谱与文献[7]的对比图
图 7  均匀流下桨叶4个A类测点的偶极子噪声声压级频谱图
图 8  均匀流下桨叶4个A类测点的单极子噪声声压级频谱图
图 9  均匀流下桨叶轴向平面的单、偶极子总声压级指向性
图 10  均匀流下桨叶径向平面的单、偶极子总声压级指向性
监测点 LpM /dB LpD /dB
A0 16.01 139.59
A3 87.03 138.43
A6 100.72 133.86
A9 105.33 106.73
表 2  均匀流下轴向平面内部分典型测点噪声成分
图 11  单艇模型上表面纵截线的压力系数分布图
工况 Fd /N E /%
实验值 102.30 ?
DES $k {\text{-} } \omega ,\;$ y+=60 105.40 +3.03
RANS $k {\text{-} } \omega,\;$ y+=60 105.63 +3.26
RANS $k {\text{-} } \varepsilon,\;$ y+=60 105.57 +3.20
表 3  不同湍流模型和壁面网格下的艇身总阻力对比
图 12  桨盘面圆周截线x方向无量纲速度随角度的分布
图 13  艇尾流场下桨叶4个A类测点的偶极子噪声声压级频谱图
图 14  桨叶在均匀流和伴流场下的轴向和径向激振力
图 15  艇尾流场下桨叶4个A类测点的单极子噪声声压级频谱图
图 16  艇尾流场下桨叶轴向平面单、偶极子总声压级指向性
监测点 LpM /dB LpD /dB
A0 13.64 140.33
A3 86.94 139.21
A6 101.76 134.75
A9 105.07 110.45
表 4  伴流场下轴向平面内部分测点噪声成分
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