한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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임펠러의 유로 면적비가 2차원 원심압축기의 성능에 미치는 영향

Effect of the Passage Area Ratio of an Impeller on the Performance of Two-Dimensional Centrifugal Compressors

  • 박한영 (고려대학교 대학원) ;
  • 신유환 (한구과학기술연구원 에너지 메카닉스 센터) ;
  • 최항철 (한구과학기술연구원 에너지 메카닉스 센터) ;
  • 김광호 (한구과학기술연구원 에너지 메카닉스 센터) ;
  • 정진택 (고려대학교 기계공학과)
  • 발행 : 2008.10.01
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초록

This study is performed to understand the effect of the variation in the passage area of a two-dimensional impeller on its performance characteristics. We observe the results with changing the area ratio of inlet to outlet about $1{\sim}2.8$. A comparison between the experimental and numerical results was performed for the same configuration in order to verify the reliability of the CFD code. Overall characteristics in the passages of impeller were analyzed in detail including streamline, Mach number, pressure and polytropic efficiency distribution. When the passage area ratio exceeds 2, the pressure ratio is high. An area ratio of 2.3 showed the highest efficiency. The results will be used as useful reference data to establish the design concept of two-dimensional impeller and to improve its performance.

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참고문헌

  1. A. H. Epstein and S. D. Senturia, 1997, "Macro Power form Micro Machinery," Science, Vol. 276, May 1997, pp. 1211 https://doi.org/10.1126/science.276.5316.1211
  2. S. A. Jacobson, 1998, "Aerothermal Challenges in the Design of a Microfabricated Gas Turbine Engine," 29th AIAA Fluid Dynamics Conference, AIAA 98-2545
  3. A. Mehra, S. A. Jacobson, C. S. Tan and A. H. Epstein, 1998, "Aerodynamic Design Considerations for the Turbomachinery of a Micro Gas Turbine Engine," 25th National and 1st International Conference on Fluid Mechanics and Power
  4. G. B. Shirley, 1998, "An Experimental Investigation of a Low Reynolds Number, High MachNumber Centrifugal Compressor," MIT master thesis
  5. B. T. Sirakov, Y. Gong and A. H. Epstein, C. Tan, 2004, "Design and Characterization of Micro- Compressor Impellers," Proceedings of ASME Turbo Expo 2004, GT2004-53332
  6. S. K. Kang, J. P. Johnston, T. Arima, M. Matsunaga, H. Tsuru and F. B. Prinz, 2003, "Micro Scale Radial Flow Compressor Impeller Made of Silicon Nitride - Manufacturing and Performance," Proceedings of ASME Turbo Expo 2003, GT2003-38933
  7. 강신형, 조운제, 윤하용, 이승갑, 1999, "초소형 원심압축기의 날개 두께 변화에 따른 성능에 과한 실험적 연구," 유체기계저널, 제2권, 제1호, pp.15-21
  8. H. Cho, H. Choi, K. Kim and J. T. Chung, 2005, "Experimental Study on the Performance Characteristics of Small Scale Two-dimensional Centrifugal Compressors," The 6th KSME-JSME Thermal and Fluids Eng., Jeju, March 20-23
  9. 홍동민, 정진택, 최항철, 신유환, 김광호, 2005, "2차원 소형 원심압축기 내의 정압 특성에 관한 실험적 연구," 대한기계학회 추계 학술대회, pp. 1236-1241
  10. ANSYS CFX, Release 11.0, CFX-11 Documentation, 2006
  11. F. R. Menter, C. J. Ferreira, T. Esch and B. Konno, "The SST Turbulence Model with Improved Wall Treatment for Heat Transfer Predictions in Gas Turbines," International Gas Turbine Congress 2003 Tokyo, 2003, IGTC2003-TS-059
  12. J. E. Bardina, P. G. Huang and T. J. Coakley, 1997 "Turbulence Modeling Validation, Testing, and Development," NASA Technical Memorandum 110446, April 1997