| 前置导叶对横流风机性能及气动噪声的影响 |
| |
| 引用本文： | 刘海建,欧阳华,田杰,李游,杜朝辉.前置导叶对横流风机性能及气动噪声的影响[J].工程热物理学报,2012(2):236-239. |
| |
| 作者姓名： | 刘海建 欧阳华 田杰 李游 杜朝辉 |
| |
| 作者单位： | 上海交通大学机械与动力工程学院 |
| |
| 摘 要： | 在横流风机叶轮前加前置导叶(IGV)可以改善横流风机的进口流场,减少叶片上的流动分离,进而降低横流风机的功率。采用非结构化网格RNGκ-ε两方程模型,分别对不加IGV、加IGV1,以及IGV2的横流风机内部流场进行数值模拟,并对三种情况进行气动性能及噪声试验。数值模拟和试验结果表明在加不同IGV以后,横流风机的噪声增大,但是功率在加IGV2后出现了一定的降低。
|
| 关 键 词： | 横流风机 IGV 气动噪声 宽频噪声 离散噪声 |
Aerodynamic and Aeroacoustic Study on the Cross Flow Fan With Inlet Guide Vane |
| |
| U Hai-Jian,G Hua,N Jie,I You,U Zhao-Hui.Aerodynamic and Aeroacoustic Study on the Cross Flow Fan With Inlet Guide Vane[J].Journal of Engineering Thermophysics,2012(2):236-239. |
| |
| Authors: | U Hai-Jian G Hua N Jie I You U Zhao-Hui |
| |
| Institution: | (School of Mechanical Engineering.Shanghai Jiao Tong University.Shanghai 200240,China) |
| |
| Abstract: | IGV can change the attack angle of flow before the impeller at CFF.so IGV can decrease the loss on the blades and the power of CFF can be reduced.We simulate and test CFF with IGV1, IGV2 and without IGV respectively by unstructured grid and RNGκ—εmodel.The result of CFD and experiments show that the SPL(sound pressure level) of CFF increased for all IGV and the power of CFF decreased for IGV2. |
| |
| Keywords: | cross flow fan IGV aeroacoustic noise broadband frequency noise discrete frequency noise |
| 本文献已被 CNKI 等数据库收录！ |
|
