한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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나선 홈 펌프 실의 누설 및 로터다이내믹 해석

Leakage and Rotordynamic Analysis of Spiral-Grooved Pump Seal Based on Three-Control-Volume Theory

  • 하태웅 (경원대학교 건축설비 기계공학부) ;
  • 이안성 (한국기계연구원 회전체그룹)
  • 발행 : 2003.06.01
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초록

In this paper the leakage prediction md rotordynamic analysis of an annular seal with a smooth rotor and spiral-grooved stator is performed. For the development of a theoretical model, the three-control-volume analysis of the circumferentially-grooved seal is expanded by considering pressure reduction due to the pumping effect of spiral groove and pressurized flow through the spiral groove. Validation on the present analysis is achieved by comparisons with available experimental data. For the leakage prediction the present analysis generally shows a reasonable agreement with experimental results. Rotordynamic coefficients for rotor speed with spiral angles show same trend, but the magnitudes of rotordynamic coefficients yield differences between analysis and experimental results.

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참고문헌

  1. Rotordynamic Instability Problems in High-Performance Turbomachinery, NASA CP No. 2443, proceedings of a workshop held at Texas A&M University Theoretical Approach to Obtaining Dynamic Characteristics of Noncontacting Spiral-Grooved Seals Iwatsubo, T.;Yang, B. S.;Ibaraki, R.
  2. Rotodyanamic Instabiltiy Problems in High-Performance Turbomachinery, NASA CP No. 3122, proceedings of a workshop held at Texas A&M University Experiment of Static and Dynamic Characteristics of Spiral Grooved Seals Iwatsubo, T;Sheng, B. C.;Ono, M.
  3. ASME Journal of Tribology v.109 no.1 Analysis for Rotodynamic Coefficients of Helically-Grooved Turbulent Annular Seals Kim, C. H.;Childs, D. W. https://doi.org/10.1115/1.3261305
  4. ASME Journal of Tribology v.112 Test Results for Turbulent Annular Seals, Using Smooth Rotors and Helically-Grooved Stators Childs, D. W.;Nolan, S. A.;Kilgore, J. J. https://doi.org/10.1115/1.2920250
  5. Proceedings of the Fifith IFToMM International Conference on Rotordynamics Dynamic Characteristics of Pump Seals With Spiral Groove Iwatsubo, T.;Ishimaru, H.
  6. KSME International Journal v.14 no.3 A Rotodynamic Analysis of Circumferentially-Grooved Pump Seals based on Three-Control-Volume Theory Ha, T. W.;Lee, A. S.
  7. Journal of Engineering for Power Effect of Groove Geometry on Viscoseal Performance Stair, W. K.
  8. Proceedings 4th International Conference of Fluid Sealing v.B6 Theoretical Analysis of Spiral-Grooved Screw Seal for Turbulent Operation Vohr, J. H.;Chow, C. Y.
  9. Introduction to Dynamics and Control Meirovitch, L.
  10. ASME Journal of Tribology v.118 An Extended Three-Control-Volume Thoery for Circumferentially-Grooved Liquid Seals Marquette, O. R.;Childs D. W. https://doi.org/10.1115/1.2831296