한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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원심압축기 임펠러의 형상 설계 최적화에 관한 수치적 연구

A Numerical Study on Shape Design Optimization for an Impeller of a Centrifugal Compressor

  • 서정민 (한국기계연구원 극한기계연구본부) ;
  • 박준영 (한국기계연구원 극한기계연구본부) ;
  • 최범석 (한국기계연구원 극한기계연구본부)
  • Seo, JeongMin (Department of Extreme Energy Systems, Korea Institute of Machinery & Materials) ;
  • Park, Jun Young (Department of Extreme Energy Systems, Korea Institute of Machinery & Materials) ;
  • Choi, Bum Seok (Department of Extreme Energy Systems, Korea Institute of Machinery & Materials)
  • 투고 : 2013.06.07
  • 심사 : 2014.05.07
  • 발행 : 2014.06.01
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초록

This paper presents a design optimization for meridional profile and blade angle ${\theta}$ of a centrifugal compressor with DOE (design of experiments) and RSM (response surface method). Control points of the $3^{rd}$ order Bezier curve are used for design parameters and specific overall efficiency is used as object function. The response surface function shows good agreement with the 3D computational results. Three different optimized designs are proposed and compared with reference design at design point and off-design point. Contours of relative Mach number, static entropy, and total pressure are analyzed for improvement of performance by optimization. Off-design performance analysis is conducted by total pressure and efficiency.

키워드

참고문헌

  1. Knowles, J., Nakayama, H., 2008, "Meta-Modeling in Multiobjective Optimization," J. Branke et al. (Eds.), Multiobjective Optimization, Springer-Verlag, Berlin Heidelberg, LNCS 5252, pp. 245-284.
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피인용 문헌

  1. 2014년 압축기 분야 연구동향 vol.18, pp.2, 2015, https://doi.org/10.5293/kfma.2015.18.2.076