Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2004.05a
  • /
  • Pages.847-847
  • /
  • 2004
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Study on Low noise, High Performance Automobile Cooling Fan Development Using Freewake and CFD Analysis

자유후류법과 CFD 해석을 통한 저소음 고효율 자동차용 냉각팬 개발에 관한 연구

  • 김규영 (한국과학기술원 항공우주공학과 대학원) ;
  • 이성규 (한국과학기술원 항공우주공학과 대학원) ;
  • ;
  • 이덕주 (한국과학기술원 항공우주공학과) ;
  • 김영남 (ATES, CFD Engineering 사업부) ;
  • 박경태 ((주)두원공조 기술연구소) ;
  • 이재영 ((주)두원공조 기술연구소)
  • Published : 2004.05.01
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Abstract

Automobile cooling fans are operated with a radiator module. To design low noise, high performance cooling fan, radiator resistance should be considered in the design process. The system (radiator) resistance reduces axial velocity and increases effective angle of attack. This increasing effective angle of attack mechanism causes blade stall, performance decrease and noise increase. In this paper, To analyze fan performance, freewake and 3D CFD calculations are used To design high performance fan with consideration of system resistance, optimal twist concept is applied through momentum and blade element theory. To predict fan noise, empirical formula and acoustic analogy methods are used.

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