T35轴流通风机声学性能的分析与预测

Investigation and Prediction of Acoustic Performance for Type T35 Axial Fan

在变工况条件下测试了T35轴流通风机的气动 -声学性能 ,采用Fukano尾迹脱落模型对T35轴流通风机的噪声进行了预测 ,结果表明该模型仅在预测设计工况点的噪声时比较准确。通过分析原因并对模型进行修正后 ,将Fukano模型推广并应用于非设计工况点的噪声预测上 。

Aeroacoustic performance of a T35 axial fan is tested at the different operating points. The Fukano's wake_shedding model used to predict the noise level of the T35 axial fan. The results indicate that the Fukano's model only can predict the noise level at the design and off_design operating points ,and the predicting accuracy for the design point is also improved.