Blade shape effect on noise and performance of forward centrifugal fan

Author

Elsheikh, Bakri E. M. A. ; Jun Wang ; Yougen Huang

Author_Institution

Fluid Mech. & Eng. Lab., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2014

Firstpage

1

Lastpage

6

Abstract

This work presents a numerical study of forward centrifugal fan. The study has been carried out to investigate the effect of impeller blades shape on fan performance and noise. Four models have been designed in different shapes of the blades curve. Computational fluid dynamics (CFD) software FLUENT has been applied to establish three-dimensional model of centrifugal fan. A steady and transient, Reynolds-averaged Navier-Stokes equation with the standard k-ε and LES are used for turbulence modeling. SIMPLE and PISO are used for pressure-velocity coupling for fan performance and noise simulation. The results illustrate the increasing of flow rate range with the increasing of blade curve length to a certain limit and then decreasing. Noise simulation also has the same trend.

Keywords

Navier-Stokes equations; acoustic noise; aeroacoustics; blades; computational fluid dynamics; fans; impellers; shapes (structures); shear turbulence; CFD; FLUENT; LES; PISO; Reynolds-averaged Navier-Stokes equation; SIMPLE; blade shape effect; computational fluid dynamics; forward centrifugal fan; impeller blades; noise simulation; pressure-velocity coupling; standard k-ε turbulence modeling; Blades Curve; CFD; Forward Centrifugal Fan; Noise;

fLanguage

English

Publisher

iet

Conference_Titel

Fluid Machinery and Fluid Engineering, 2014 ISFMFE - 6th International Symposium on

Print_ISBN

978-1-84919-907-0

Type

conf

DOI

10.1049/cp.2014.1188

Filename

7124109