Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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PERFORMANCE IMPROVEMENT OF A RANGE HOOD SIROCCO FAN BY CFD FLOW ANALYSIS

렌지후드의 성능개선을 위한 시로코 펜 주위의 유동해석

  • 한병윤 (전남대학교 대학원 기계공학과) ;
  • 박진우 (전남대학교 대학원 기계공학과) ;
  • 이명수 (전남대학교 기계시스템공학부) ;
  • 박형구 (전남대학교 공과대학 기계시스템공학부)
  • Published : 2008.12.31
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Abstract

This study is to investigate the air flow around a sirocco fan which is used in a range hood. The main object of the study is to improve the flow rate of the fan by analysis of unsteady 3-dimensional incompressible flow. Overall analysis is carried out using CFD method. For this, we used a commercial code, SC/Tetra, and used a sliding mesh method to give the same condition as an actual state. First, verification of the CFD results is done by comparing the experimental data with the numerical data for the suction flow rate. It is confirmed that two results are well consistent. Then for the improvent of flow rate, the effect of shape factors such as diameter ratio of fan, geometry of case, cut-off aperture and guide angle of case exit on the suction flow rate was considered. Especially, for a new design of housing, the principle of Archimedes spiral was used. The overall analysis was applied to a new design of housing, and the result showed an increase of flow rate by 10.7%.

Keywords

References

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