각이 진 평행 홈 펌프 실의 누설량 특성 해석
Leakage Characteristic of Angled-Circumferential-Groove-Pump Seal with CFD Analysis
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In order to improve leakage characteristic, angled-circumferential-groove pump seal is suggested. CFD analysis using FLUENT has been performed to predict leakage and determine an optimum slanted-groove angle a which yields the best leakage reduction. The optimum value of a ranges from 45° to 60° and depends on the pressure difference of seal and number of grooves for the same groove geometry. The maximum leakage reduction ratio increases as increasing the pressure difference of angled-circumferential-groove pump seal with the optimum value of a.
Abstract
In order to improve leakage characteristic, angled-circumferential-groove pump seal is suggested. CFD analysis using FLUENT has been performed to predict leakage and determine an optimum slanted-groove angle a which yields the best leakage reduction. The optimum value of a ranges from 45° to 60° and depends on the pressure difference of seal and number of grooves for the same groove geometry. The maximum leakage reduction ratio increases as increasing the pressure difference of angled-circumferential-groove pump seal with the optimum value of a.
참고문헌 (14)
- Black, H. F, "Leakage and Hybrid Bearing Properties of Serrated Seals in Centrifugal Pumps", presented at the 6th International Conference on Fluid Sealing, pp.G5- 61~G5-70 (1973)
- Childs, D. W, "Testing for Rotordynamic Coefficients and Leakage : Circumferentially- Grooved Turbulent Annular Seals", Proceedings of the Second IFToMM International Conference on Rotordynamics, pp.609~618 (1986)
- Nordmann, R, "Rotordynamic Coefficients and Leakage Flow of Parallel Grooved Seals and Smooth Seals", Rotordynamic Instability Problems in High- Performance Turbomachinery, NASA CP No. 2338, proceedings of a workshop held at Texas A&M University, pp.129~153 (1986)
- Kim, C. H, "Analysis for Rotordynamic Coefficients of Helically-Gro- oved Turbulent Annular Seals", ASME Journal of Tribology, 109(1), pp.136~143 (1987)
- Iwatsubo, T, "Evaluation of Dynamic Characteristics of Parallel Grooved Seals by Theory and Experiment", in Proceedings of the Third IFToMM International Conference on Rotordynamics, pp.313~318 (1990)
- Iwatsubo, T, "Experiment of Static and Dynamic Characterist- ics of Spiral Grooved Seals", Rotordynamic Instability Problems in High-Performance Turbo-machinery, NASA CP No. 3122, proceedings of a workshop held at Texas A&M University, pp.223~234 (1990)
- Kilgore, J. J, "Rotordynamic Coefficients and Leakage Flow of Circumferentially Grooved Liquid-seals", ASME Journal of Fluids Engineering,, 112, pp.250~256 (1990)
- Florjancic, S, "Annular Seals of High Energy Centrifugal Pumps : A New Theory and Full Scale Measurement of Rotordynamic Coefficients and Hydrauric Friction Factors", 박사, pp.1990
- Marquette, O. R, "An Extended Three-Control-Volume Theory for Circumferentially- Grooved Liquid Seals", ASME Journal of Tribology, 118, pp.276~285 (1996)
- 하태웅, "나선 홈 펌프 실의 누설 및 로터다이내믹 해석", 유체기계저널, 6(1), pp.14~22 (2003), 유체기계공업학회
- Ha, T.W, "A Rotordynamic Analysis of Circumferentially- Grooved Pump Seals Based on a Three-Control- Volume Theory", KSME International Journal, 14(3), pp.261~271 (2000)
- 하태웅, "CFD를 사용한 터보기계 비접촉식 실의 누설량 예측", 유체기계저널, 9(6), pp.14~21 (2006), 유체기계공업학회
- 하태웅, "CFD를 사용한 평행 홈 펌프 시일의 해석 개선", 한국윤활학회지, 24(6), pp.291~296 (2008), 한국윤활학회
- "Fluent User's Guide Ver. 6.3", ~