The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Numerical Studies on the S-Shaped Duct Flow for Compressors

압축기용 S형 덕트 유동에 대한 수치해석적 연구

  • 최창호 (한국항공우주연구원 터보펌프개발그룹) ;
  • 노준구 (한국항공우주연구원 터보펌프개발그룹) ;
  • 김진한 (한국항공우주연구원 터보펌프개발그룹)
  • Published : 2004.08.01
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Abstract

This paper is concerned with the numerical analyses of an S-shaped duct for the inter-channel between compressor spools. For the compactness and lightweight of an engine, the length of the S-shaped duct is desired to be minimized. Shortening the S-shaped duct, however, flow separation is likely to occur. Numerical investigation using a three-dimensional Navier-Stokes flow solver was performed to determine the availability of the minimization of an S-shaped duct. Computations were performed introducing the experimental data as the inlet flow condition of the OGV in determining the minimum length of the S-shaped duct. Also, the leaning effect of the OGV which assists the flow to turn radially inward was studied adopting mixing-plane method to consider the rotor/OGV interaction.

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References

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