원문정보
Numerical Study on Development of Low Noise Axial FanPartⅠ : Analysis of Flow Structure and Noise Source for Fan Internal Region
초록
영어
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
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