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http://dx.doi.org/10.9725/kstle.2009.25.3.150

Prediction of Annular Type Seal Leakage Using 3D CFD  

Seok, Hee-Soo (Graduate School, Dept. of Mechanical & Automotive Engineering, Kyungwon University)
Ha, Tae-Woong (Graduate School, Dept. of Mechanical & Automotive Engineering, Kyungwon University)
Publication Information
Tribology and Lubricants / v.25, no.3, 2009 , pp. 150-156 More about this Journal
Abstract
Precise leakage prediction for annular type seals of turbomachinery is necessary for enhancing their efficiency and various prediction methods have been developed. As the seal passage is designed intricately, the analysis based on Bulk-flow concept which has been mainly used in predicting seal leakage is limited. In order to improve the seal leakage 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 leakage of various non-contact type anular seals using FLUENT. Compared to the results by Bulk-flow model analysis, experiment, and 2D CFD analysis, the result of 3D CFD analysis shows improvement in predicting seal leakage, especially for the parallel grooved pump seal.
Keywords
leakage; plain seal; eccentric plain seal; grooved seal; labyrinth seal; bulk-flow model; FLUENT;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 하태웅, 'CFD를 사용한 터보기계 비접촉식 실의 누설량 예측,' 유체기계저널, Vol. 9, No. 3, pp. 14-21, 2006   DOI
2 San, Andres, L., 'Analysis of Variable Fluid Properties, Turbulent Annualr Seals,' ASME Journal of Tribology, pp. 694-702, 1991
3 Childs, D., 'Dynamic Analysis of Turbulent Annular Seals Based on Hirs' Lubrication Equation,' Journal of Lubrication Technology, Vol 105, pp. 437-444, 1993   DOI
4 하태웅' '편심된 펌프 실의 누설 및 회전체 동역학적 해석,' 유체기계저널, Vol. 4, No. 2, pp. 15-21, 2001
5 Ha, T. W. and Lee, A. S., 'A Rotordynamic Analysis of Circumferentially-Grooved Pump Seals Based on a Three-Control-Volume Theory,' KSME, International Journal, Vol. 14, No. 3, pp. 261-271, 2000   과학기술학회마을   DOI   ScienceOn
6 하태웅, 'CFD를 사용한 복잡한 형상을 갖는 래버린스 실의 누설량 예측,' 윤활학회지, Vol. 22, No. 2, pp. 66-72, 2006
7 Iwatsubo, T. and Sheng, B., 'Evaluation of Dynamic Characteristics of Parallel Grooved Seals by Theory and Experiment', in Proceedings of the Third IFToMM intemational Conference on Rotordynamics, Lyon, France, pp. 313-318, 1990
8 하태웅, 'CFD를 사용한 평행 홈 펌프 시일의 해석 개선 윤활학회지, Vol. 24, No. 6, pp. 291-296, 2008
9 Park, S. Y. and Rhode D., 'CFD Solution Allowing Modeling Improvement to the Bulk flow Rotordynamic Code of Dr. Childs for Grooved Seals,' Texas A&M University, TRC-SEAL-6-98, 1998
10 Moore, J., Palazzolo, A., and Na, U. J., 'CFD Modeling for Dynamic Coefficients of Labyrinth Seals and Impeller Leakage Paths,' Texas A&M University, TRC-SEAL-298, 1998
11 Dietzen, F. J. and Nordmann, R., 'Calculating Rotordyanmic Coefficients of Seals by Finite-Difference Techniques,' the 4th Workshop on Rotordynamic Instability Probelms in High Performance Turbomachinery., pp. 77-98, 1986
12 FLUENT User's Guide Ver. 6.3
13 Marquette, O. R., Childs D. W., and San Andres L., 'Eccentricity Effects on the Rotordynamic Coefficients of Plain Annular Seals: Theory Versus Experiment,' Journal of Tribology, Vol, 119, pp. 443-448, 1997   DOI   ScienceOn
14 Hirs, G G, 'A Bulk-f1ow Theory for Turbulence in Lubricating Films,' ASME Journal of Lubrication Technology, Vol, 105, pp. 137-146, 1973
15 하태웅, 이안성, '압축기용 라비린스 시일의 동특성 해석,' 한국소음진동공학회지, Vol. 8, No. 5, pp. 849-855, 1998