Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Improved Momentum Exchange Theory for Incompressible Regenerative Turbomachines (I) - Hydraulic Model -

비압축성 재생형 기계에 대한 개선된 운동량 교환 이론 (I) - 수력학적 모델 -

  • 박무룡 (한국기계연구원 열유체공정기술연구부) ;
  • 정명균 (한국과학기술원 기계공학과) ;
  • 유일수 (한국과학기술원 대학원 기계공학과)
  • Published : 2004.10.01
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Abstract

Momentum exchange theory has been generally used for an analysis of the regenerative turbomachines due to its direct description of the complicate circulatory flow. However, because its application is limited only to linear region and its model equations are incomplete on three variables, it needs further refinements. In the present study it is improved by introducing a central pivot of circulatory flow. Also, by assuming linear circulatory velocity distribution, mean radii of inlet and outlet flows through the impeller are newly suggested. By applying control volume analysis to both linear region and the acceleration region, the governing equation on the circulatory velocity is derived. As a result, systematic performance analysis on the entire region of the incompressible regenerative turbomachines can be carried out based on the proposed model equations.

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References

  1. Senoo, Y., 1948, 'Theoretical Research on Friction Pump,' Reports of the Research Institute for Fluid Engineering, Vol. 1
  2. Iverson, H. W., 1955, 'Performance on the Periphery Pump,' Trans. of the ASME, Vol. 77, pp. 19-22
  3. Wilson, W. A., Santalo, M. A. and Oelrich, J. A., 1955, 'A Theory of the Fluid Dynamic Mechanism of Regenerative Pumps,' Trans. of the ASME, Vol. 77, pp. 1303-1316
  4. Song, J. W., Engeda, A. and Chung, M. K., 2003, 'A Modified Theory for the Flow Mechanism in a Regenerative Flow Pump,' Proc. Instn Mech. Engrs, Vol. 217, pp. 313-321 https://doi.org/10.1243/095765003322066538
  5. Shim, C. Y. and Kang, S. H., 2003, 'Through Flow Anlaysis and Leakage Flow of a Regenerative Pump,' Trans. of the KSME(B), Vol. 27, No.8, pp. 1015-1022 https://doi.org/10.3795/KSME-B.2003.27.8.1015
  6. Paeng, K. S. and Chung, M. K., 2001, 'A New Slip Factor Centrifugal Impellers,' Proc. Instn Mech. Engrs, Vol. 215, pp. 645-648 https://doi.org/10.1243/0957650011538776
  7. Badami, M., 1997, 'Theoretical and Experimental Analysis of Traditional and New Periphery Pumps,' SAE Technical Paper Series, No. 971074, pp. 45-55