基于流场/声场混合模型的叶轮机械单音噪声研究
收稿日期: 2013-09-30
修回日期: 2014-03-06
网络出版日期: 2014-04-08
基金资助
国家自然科学基金（51276149）
Turbomachinery Tonal Noise Study Based on Flow-field/acoustic-field Hybrid Model
Received date: 2013-09-30
Revised date: 2014-03-06
Online published: 2014-04-08
Supported by
National Natural Science Foundation of China (51276149)
王良锋 , 乔渭阳 , 纪良 , 仝帆 . 基于流场/声场混合模型的叶轮机械单音噪声研究[J]. 航空学报, 2014 , 35(9) : 2481 -2490 . DOI: 10.7527/S1000-6893.2014.0014
Turbomachinery tonal noise hybrid prediction model (URANS/DBAA) is developed successfully based on the three-dimensional unsteady Reynolds-averaged Navier-Stokes (URANS) equations and the ducted blade-rows acoustic analogy (DBAA) theory. In the URANS/DBAA hybrid model, the detailed design parameters of the turbomachinery blades can be related to the noise level, and the computational load is not required so much because the Lighthill's acoustic analogy theory is used. The tonal noise of a single stage axial fan is predicted based on the URANS/DBAA hybrid model and the characteristics of the noise sources distribution on the blade surface are analyzed in detail. The results indicate that the URANS/DBAA hybrid model can simulate the turbomachinery tonal noise correctly and it can be used to recognize and analyze the primary rules of the turbomachinery tonal noise.
Key words： tonal noise; acoustic analogy; hybrid model; turbomachinery; axial fan
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