저소음형 축류 팬 개발을 위한 수치해석 연구PartⅠ : 팬 내부의 유동 구조 및 소음원 분석
Numerical Study on Development of Low Noise Axial FanPartⅠ : Analysis of Flow Structure and Noise Source for Fan Internal Region
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초록
In this study, numerical analysis was carried out to develop low-noise axial fans, which are often used for ventilation in houses. A commercial program and the turbulence models are used for the analysis of internal fan. Proudman acoustic power model and the Curle surface acoustic power model were used for analysis. As a result, the distribution of flow velocity and pressure around the blade and guide of the fan was high, and low in the center of the fan. Noise from the inner wall of the fan case and the blade surface was the highest at the body and vane connections of the blade, and low at the center of the vane and the center of the body.
Abstract
In this study, numerical analysis was carried out to develop low-noise axial fans, which are often used for ventilation in houses. A commercial program and the turbulence models are used for the analysis of internal fan. Proudman acoustic power model and the Curle surface acoustic power model were used for analysis. As a result, the distribution of flow velocity and pressure around the blade and guide of the fan was high, and low in the center of the fan. Noise from the inner wall of the fan case and the blade surface was the highest at the body and vane connections of the blade, and low at the center of the vane and the center of the body.
참고문헌 (5)
- REESE, Hauke, "Axial fan noise: towards sound prediction based on numerical unsteady flow data-a case study", Journal of the Acoustical Society of America, 123(5), pp.3539~ (2008)
- Lin, X. H., "The Progress of the Study on Fan Noise Reduction Technology", Advanced Materials Research, 591, pp.2056~2059 (2012), Trans Tech Publications Ltd
- Sookyoon Jeong, "Analysis of flow field and noise for an Automobile Cooling Fan", The Korean Society Of Automotive Engineers, pp.1379~1384 (2002)
- 김진혁, "주거환기용 시로코홴의 공력 및 소음 특성 연구", 한국유체기계학회 논문집, 13(2), pp.19~24 (2010), 한국유체기계학회
- 김재열, "진공청소기 팬 모터의 진동 및 소음원인 분석을 위한 유동해석", 한국생산제조학회지, 13(4), pp.56~63 (2004), 한국생산제조학회