Dynamic coefficients of labyrinth gas seals a comparison of experimental results and numerical calculations

Proceedings of the ASME Turbo Expo

Volumn 4, Issue , 2000, Pages

  Kwanka, K ^a   Sobotzik, J ^b   Nordmann, R ^b  

^a TECHNICAL UNIVERSITY OF MUNICH   (Germany)

^b DARMSTADT UNIVERSITY OF TECHNOLOGY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

LEAKAGE (FLUID); NAVIER STOKES EQUATIONS; TURBOMACHINERY;

CROSS-COUPLED STIFFNESS; DYNAMIC COEFFICIENT; EXPERIMENTAL IDENTIFICATION; FINITE-ELEMENT PREDICTIONS; NUMERICAL APPROACHES; NUMERICAL CALCULATION; ROTOR VIBRATIONS; SELF-EXCITED VIBRATIONS;

SEALS;

EID: 84955071334     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1115/2000-GT-0403     Document Type: Conference Paper

References (18)

1. Benckert H., Wachter J., 1980. "Flow Induced Spring Coefficients of Labyrinth Seals for Application in Rotordynamics", NASA Conference Publication 2133, Proceedings of a workshop held at Texas A&M University, pp. 1-17.
2. Benodekar, R. W., Goddard, A.J.H., Gosman, A.D., Issu, R.I., 1985, "Numerical prediction of turbulent flow over surfacemounted ribs", AIAA Journal Vol. 23, No. 3
3. Childs D. W., 1982, "Finite Length Solutions for Rotordynamic Coefficients of Turbulent Annular Seals", Journal of Lubrication Technology, ASME-Paper, No. 82, Lub. 42
4. Childs D. W., 1993. "Turbomachinery Rotordynamics", John Wiley & Sons, Inc.
5. Childs D. W., Nelson C. E., Nicks C., Scharrer J., Elrod D., Hale K., 1986. "Theory Versus Experiment for the Rotordynamic Coefficients of Annular Gas Seals: Part 1-Test Facility and Apparatus", Trans. ASME, J. of Tribology, Vol. 108, pp. 426-432.
6. Dietzen, F.-J. and Nordmann, R., 1988, "A 3-Dimensional Finite Difference Method for Calculating the Dynmaic Coefficients of Seals", Proceedings of the Rotordynamic Instability Workshop, Texax A&M University, Texas, USA, pp. 211-227
7. Kwanka K., Mair R., 1995. "Identification of Gas Seal Dynamic Coefficients Based on the Stability Behavior of a Rotor", Proceedings of the 1st. European Conference of Turbomachinery-Fluid Dynamic and Thermodynamic Aspects, March 1-3, Erlangen-Nürnberg, Germany, VDI-Report 1186, pp. 297-309.
8. Kwanka K., 1995: "Variation of Fluid Flow Forces in Seals with Rotor Bending", DE-Vol. 84-2, 1995 Design Eng. Technical Conf., Vol. 3-Part B, ASME 1995, pp. 1277-1282.
9. Kwanka K., 1997. "Rotordynamic Impact of Swirl Brakes on Labyrinth Seals with Smooth or Honeycomb Stators", ASME Paper No. 97-GT-232, ASME Turbo Expo '97, Orlando, Florida.
10. Kwanka K., 1998."Influence of Labyrinth Seal Geometry on Rotordynamic Coefficients", Proceedings of the Fifth International Conference on Rotor Dynamics (IFToMM), H. Irretier and R. Nordmann (Ed.), Vieweg Verlag, pp. 241-251.
11. Leong Y. M. M. S., Brown R. D., 1984: "Experimental Investigations of Lateral Forces Induced Through Model Labyrinth Glands", NASA CP 3239, pp. 187-196.
12. Matros M., Neumer T., Nordmann R., 1994. "Identification of Rotordynamic Coefficients of Centrifugal Pump Components Using Magnetic Bearings", Preprints of the Fifth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-5), May 8-11, 1994, Kaanapali, Hawaii, USA, pp. 55-72.
13. Millsaps K. T., Martinez-Sanches M., 1993. "Rotordynamic Forces in Labyrinth Seals: Theory and Experiment ", NASA Conference Publication 3239, Proceedings of a workshop held at Texas A&M University, pp. 179-207.
14. Nordmann, R., Dietzen, F-J., Weiser, H.P., 1989, "Calculation of Rotordynamic Coefficients and Leakage for Annular Gas Seals by Means of Finite Difference Techniques", Journal of Tribology, July 1989, Vol. 111/545
15. Nordmann, R., Weiser, H.P., 1988, "Rotordynamic Coefficients for Labyrinth Seals Calculated by Means of a Finite Difference Technique, Proceedings of the Rotordynamic Instability Workshop, Texax A&M University, Texas, USA, pp. 161-175
16. Ulbrich H., 1988: "New Test Techniques Using Magnetic Bearings", Magnetic Bearings Proceedings of the First International Symposium, ETH Zürich, G. Schweitzer (Editor), Springer Verlag, pp. 281-288.
17. Wagner N. G., Steff K., 1996: "Dynamic Labyrinth Coefficients from a High-Pressure Full-Scale Test Rig Using Magnetic Bearings", NASA Conference Publication to be published, Proceedings of a workshop held at Texas A&M University, May 6-8, pp. 95-111.
18. Wright D. V., 1983. "Labyrinth Seal Forces on a Whirling Rotor", ASME Applied Mechanics Division, Proceedings of a Symposium on Rotor Dynamical Instability, Adams M. L. Jr. (Editor), ASME Book-Vol. 55, pp. 19-31.