Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Prediction of Rotordynamic Coefficients for High-Performance-Pump Seal Using CFD Analysis

CFD를 사용한 고성능 펌프 실의 동특성 계수 예측

  • Choe, Bok-Seong (Graduate School, Dept. of Mechanical & Automotive Engineering, Kyungwon University) ;
  • Ha, Tae-Woong (Graduate School, Dept. of Mechanical & Automotive Engineering, Kyungwon University)
  • 최복성 (경원대학교 기계자동차공학과 대학원) ;
  • 하태웅 (경원대학교 기계자동차공학과 대학원)
  • Received : 2009.10.21
  • Accepted : 2009.12.19
  • Published : 2010.02.28
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Abstract

Precise prediction of rotordynamic coefficients for annular type seal of turbomachinery is necessary for enhancing their vibrational stability and various prediction methods have been developed. As the seal passage is designed complicatedly, the analysis based on Bulk-flow concept which has been mainly used in predicting seal dynamics is limited. In order to improve the seal rotordynamic prediction, full Navier-Stokes Equations with turbulent model derived in the seal flow passage have to be solved. In this study, 3D CFD(Computational Fluid Dynamics) analysis has been performed for predicting rotordynamic coefficients of non-contact type annular plain seal using FLUENT. Comparing with the results of Bulk-flow model analysis, the result of 3D CFD analysis shows good agreement.

Keywords

References

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