Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Numerical Analysis on Pressure Pulsation with Turbo Fan Shape

Turbo Fan 형상에 따른 맥동압력에 관한 수치해석

  • Yi, Chung-Seub (2nd Stage BK21(AMAEEP), Gyeongsang National University) ;
  • Suh, Jeong-Se (School of Mechanical & Aerospace Engineering, Gyeongsang National University) ;
  • Song, Chul-Ki (School of Mechanical & Aerospace Engineering, Gyeongsang National University) ;
  • Hong, Jeong-Kyu (School of Mechanical & Aerospace Engineering, Gyeongsang National University) ;
  • Shin, You-In (Graduate School of Mechanical Engineering, Gyeongsang National University)
  • 이중섭 (경상대학교 BK21사업단(첨단기계)) ;
  • 서정세 (경상대학교 기계항공공학부) ;
  • 송철기 (경상대학교 기계항공공학부) ;
  • 홍정규 (경상대학교 기계항공공학부) ;
  • 신유인 (경상대학교 대학원)
  • Published : 2009.06.25
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Abstract

This study simulates the flow characteristics of the turbo-fan which was applied to the industrial scale. Numerical analysis has been carried out to investigate a pulsation behavior of exhaust air that flow out the turbo fan, considering a constant rotating rate of impeller. Moving mesh technique provides time-accurate solutions for the flow inside an impeller. From the numerical results, FFT analysis has been made for pressure pulsations inside turbo-fan casing. The numerical simulation shows the pulsation of model-2 has higher than model. Additionally, BPF value is almost same as the numerical results.

Keywords