저소음형 축류 팬 개발을 위한 수치해석 연구PartⅠ : 팬 내부의 유동 구조 및 소음원 분석

다국어 초록 (Multilingual 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.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 수치해석 방법
• 2.1 수치해석 방법 및 해석 이론
• 2.2 수치해석 대상 및 격자
• 2.3 해석 및 경계 조건
• 3. 수치해석 결과
• 3.1 팬 내부 유동해석
• 3.2 팬에서 발생하는 소음의 위치와 크기
• 4. 결론
• 후기
• References

참고문헌 (Reference)

1 김재열, "진공청소기 팬 모터의 진동 및 소음원인 분석을 위한 유동해석" 한국생산제조학회 13 (13): 56-63, 2004

2 김진혁, "주거환기용 시로코홴의 공력 및 소음 특성 연구" 한국유체기계학회 13 (13): 19-24, 2010

3 Lin, X. H., "The Progress of the Study on Fan Noise Reduction Technology" Trans Tech Publications Ltd 591 : 2056-2059, 2012

4 REESE, Hauke, "Axial fan noise: towards sound prediction based on numerical unsteady flow data-a case study" 123 (123): 3539-, 2008

5 Sookyoon Jeong, "Analysis of flow field and noise for an Automobile Cooling Fan" 1379-1384, 2002