Acoustic Analysis of Plenum Fan using Kirchhoff-BEM
Kirchhoff-BEM 을 이용한 Plenum Fan 소음해석
- Published : 2004.12.01
Abstract
To numerically construct the sound fields by a plenum fan mostly found in Air-Handling Unit (AHU), the Kirchhoff-BEM approach was applied to the near-field data of a turbo fan. The scattering effects were found to be significant by the plenum box structure for high-frequency components of source. The directivity petterns and sound pressure levels were also dependent upon the helmholts number which must be considered of the design stage for sound reduction program.
Keywords
- Plenum Fan;
- Kirchhoff Surface;
- Boundary Element Method;
- Ffowcs Williams-Hawkings;
- Dipole Source;
- Loading Noise
- 플레늄홴;
- 경계요소법;
- (FW-H) 방정식;
- 이극자 음원;
- 하중소음;