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
 1. 서 론
 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
 4. 결 론
 후 기
 References

• 이승로(Jeonbuk National University, Dept. of Mechanical Eng.) | Seungro Lee Corresponding Author
• 선광명(Dae Ryun Industrial Company) | Kwangmyung Sun
• 이철형(Dae Ryun Industrial Company) | Cheolhyung Lee
• 김진택(Jeonbuk National University, School of Mechanical System Eng.) | Jintaek Kim
• 남현택(Jeonbuk National University, Dept. of Mechanical Eng.) | Hyeontaek Nam
• 전유선(Jeonbuk National University, Dept. of Mechanical Eng.) | Yuseon Jeon