Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Prediction of Combination-Type-Staggered-Labyrinth Seal Leakage Using CFD

CFD를 사용한 복잡한 형상을 갖는 래버린스 실의 누설량 예측

  • Ha Tae-Woong (Dept. of Mechanical Enginering, Kyungwon University)
  • 하태웅 (경인대학교 건축설비.기계공학부)
  • Published : 2006.04.01
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Abstract

Leakage reduction through annular type labyrinth seals of steam turbine is necessary for enhancing their efficiency and the precise prediction method of seal leakage is needed. In this study, numerical analysis for leakage prediction of the combination-type-staggered-labyrinth seal has been carried out using FLUENT 6 which is commercial CFD (Computational Fluid Dynamics) code based on FVM (Finite Volume Method) and SIMPLE algorism. The present CFD results are verified with the theoretical analysis based on Bulk-flow concept which has been mainly used in predicting seal leakage. Comparing with the result of Bulk-flow model analysis, the leakage result of CFD analysis shows good agreement within 7.1% error.

Keywords

References

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