The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Performance Characteristics according to the Outlet Impeller Blade Shape of a Centrifugal Blower

원심블로어 임펠러 토출 날개 형상에 따른 성능특성

  • 이종성 (한국건설기술연구원 환경연구실) ;
  • 전현준 (한국건설기술연구원 환경연구실) ;
  • 장춘만 (한국건설기술연구원 환경연구실)
  • Received : 2013.01.27
  • Accepted : 2013.11.09
  • Published : 2013.12.01
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Abstract

This paper presents the performance characteristics of a centrifugal blower using the design parameters of an impeller blade. Two design variables, the bending length from the blade trailing edge and bending angles of an impeller blade, are introduced to analyze the effects on the blower performance. Three-dimensional Navier-Stokes equations with shear stress transport turbulence model are introduced to analyze the performance and internal flow of the blower. Relatively good agreement between experimental measurements and numerical simulation at the design flow condition is obtained. Throughout present study, it is known that pressure increases as the bending length from the trailing edge and bending angle increase while efficiency decreases. But efficiency is decreased. Detailed flow field inside the centrifugal blower is also analyzed and compared.

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References

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