Abstract
The aerodynamic noise of a cross flow fan with uneven blade spacing in room air-conditioner was simulated by computational aerodynamic acoustics (CAA) method. It is detailed to analyze the vorticity distribution of the flow field and the power spectral density of measured points' pressure fluctuations, and the results demonstrate the non-uniform impeller used in this paper can significantly improve internal flow characteristics. Thus the broadband noise got reduced.
| Original language | English |
|---|---|
| Pages (from-to) | 251-256 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Volume | 693 |
| DOIs | |
| State | Published - 2016 |
Keywords
- Computational fluid dynamics
- Cross flow fan
- Noise prediction
- Non-uniform impeller
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