시로코 환기팬 블레이드 설계 변수에 따른 유동 및 소음 특성에 대한 수치 해석 연구
Numerical Study on Flow and Noise Characteristics of Sirocco Ventilation Fan for Blade Design Factors
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초록
Numerical analysis for flow and noise characteristics of sirocco fan design factors is conducted in this study. 4 cases of blade angle(α=24°~30°) and 5 cases of RPM(390~1170RPM) are calculated. Flow characteristics are compared for the number of blades. Outlet flow rate is tended to decrease as the number of blades increased. There is little difference in the flow characteristics for the angle of blade. The highest outlet flow rate is predicted at α=24°, and the lowest at α=28°. Flow and noise characteristics are compared for α=24° and 26°. Outlet flow rate is almost similar in both cases, but noise for α=24° is predicted higher at high RPM conditions.
Abstract
Numerical analysis for flow and noise characteristics of sirocco fan design factors is conducted in this study. 4 cases of blade angle(α=24°~30°) and 5 cases of RPM(390~1170RPM) are calculated. Flow characteristics are compared for the number of blades. Outlet flow rate is tended to decrease as the number of blades increased. There is little difference in the flow characteristics for the angle of blade. The highest outlet flow rate is predicted at α=24°, and the lowest at α=28°. Flow and noise characteristics are compared for α=24° and 26°. Outlet flow rate is almost similar in both cases, but noise for α=24° is predicted higher at high RPM conditions.
참고문헌 (6)
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- Jongwon Lee, "Improvement and Effects of Inlet Shape on Flow for Sirocco Fan", The Korean Society for Aeronautical & Space Sciences 2018 Spring Conference, pp.58~59 (2018)
- 이종원, "안내 깃이 장착된 시로코 팬 성능과 내부 유동 연구", 한국유체기계학회 논문집, 22(3), pp.12~18 (2019), 한국유체기계학회
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- 송지훈, "초고속 터보기계의 회전 속도에 대한 공력-소음 연구", 한국정밀공학회지, 37(12), pp.897~904 (2020), 한국정밀공학회[DOI]
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