한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2014년도 추계학술대회 논문집
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- Pages.773-778
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- 2014
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- 1598-2548(pISSN)
서버용 냉각팬의 유동 및 소음 특성 분석에 관한 연구
Study on the flow and noise characteristic analysis for cooling fan in a server computer
- Lim, Tae-Gyun (CEDIC Co. Ltd.) ;
- Jeon, Wan-Ho (CEDIC Co. Ltd.) ;
- Hong, Hyun-Ki (CEDIC Co. Ltd.)
- 발행 : 2014.10.29
초록
Recently both high performance and low noise for a cooling fan used in a server computer have been required. In this study, we measured the noise characteristics for a small cooling fan used in a computer or in a server, and compared the computational data to measured ones. SC/Tetra V10 and FlowNoise V4.3 was used for the unsteady flow field and the aeroacoustic analysis, respectively. The aeroacoustic analysis results have the good agreement with measured data within 3% errors in overall SPL. In the noise spectrum, we could find the peak tonal noise at lower frequency than 1st BPF, and confirm that the reason is caused by the asymmetry of bell mouth shape.
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