The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Rotordynamic Analysis of See-through-type Labyrinth Seal Using 3D CFD

3D CFD를 활용한 관통 래버린스 실의 회전체 동역학적 해석

  • Ha, Tae Woong (Gachon University Department of Mechanical Engineering)
  • 하태웅 (가천대학교 기계공학과)
  • Received : 2014.10.28
  • Accepted : 2014.01.14
  • Published : 2015.02.01
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Abstract

Labyrinth seals are commonly used in various kinds of turbomachinery to reduce leakage flow. In the present 3D CFD analysis of see-through-type labyrinth air seal, the methodology of determining leakage and rotordynamic coefficients is suggested with the relative coordinate system for steady-state simulation. The leakage flow and rotordynamic forces predicted by using different solvers and turbulent models of FLUENT are compared with the results of the existing bulk-flow analysis code LABYSEAL.FOR and experiment. The present CFD result of direct stiffness(K) shows only improvement in prediction. The results of leakage and rotordynamic coefficients as well as computing time are sensitive against the used solver and turbulent model.

Keywords

References

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