0
TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Predicted Effects of Shunt Injection on the Rotordynamics of Gas Labyrinth Seals

[+] Author and Article Information
N. Kim

Weatherford International, Inc., Houston, TX

S.-Y. Park, D. L. Rhode

Mechanical Engineering Department, Texas A&M University, College Station, TX

J. Eng. Gas Turbines Power 125(1), 167-174 (Dec 27, 2002) (8 pages) doi:10.1115/1.1520539 History: Received December 01, 2000; Revised March 01, 2001; Online December 27, 2002
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Childs, D. W., 1993, Turbomachinery Rotordynamics: Phenomena, Modeling and Analysis, John Wiley and Sons, New York.
Gelin, A., Pugnet, J. M., Bolusset, D., and Friez, P., 1996, “Experience in Full-Load Testing Natural Gas Centrifugal Compressors for Rotordynamic Improvements,” ASME Paper No. 96-GT-378.
Soto, E. A., and Childs, D. W., 1998, “Experimental Rotordynamic Coefficient Results for (a) a Labyrinth Seal With and Without Shunt Injection and (b) a Honeycomb Seal,” ASME Paper No. 98-GT-008.
Kim, N., and Rhode, D. L., 2000, “CFD-Perturbation Seal Rotordynamic Model for Tilted Whirl About Any Pivot Axial Location,” Proceedings of the 8th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, (ISROMAC-8), II , pp. 1116–1123.
Kim, N., and Rhode, D. L., 2000, “A New CFD-Perturbation Model for the Rotordynamics of Incompressible Flow Seals,” ASME Paper No. 2000-GT-402.
Launder,  B. E., and Spalding,  D. B., 1974, “The Numerical Computation of Turbulent Flows,” Comput. Methods Appl. Mech. Eng., 3, pp. 269–289.
Ishii,  E., Kato,  C., Kikuchi,  K., and Miura,  H., 2000, “Fully Three-Dimensional Computation of Rotordynamic Coefficients in a Labyrinth Seals,” ASME J. Turbomach., in press
Athavale,  M. M., and Hendricks,  R. C., 1996, “A Small Perturbation CFD Method for Calculation of Seal Rotordynamic Coefficients,” Int. J. Rotating Mach., 2, pp. 167–177.
Van Doormaal,  J. P., and Raithby,  D. G., 1984, “Enhancements of the SIMPLE Method for Predicting Incompressible Fluid Flows,” Numer. Heat Transfer, 2, pp. 147–163.
Leonard,  B. P., 1979, “A Stable and Accurate Convective Modeling Procedure Based on Quadratic Upstream Interpolation,” Comput. Methods Appl. Mech. Eng., 19, pp. 59–98.
Dietzen,  F. J., and Nordmann,  R., 1987, “Calculating Rotordynamic Coefficients of Seals by Finite-Difference Techniques,” ASME J. Tribol., 109, pp. 388–394.
Arghir,  M., and Frene,  J., 1997, “Rotordynamic Coefficients of Circumferentially-Grooved Liquid Seals Using the Averaged Navier-Stokes Equations,” ASME J. Tribol., 119, pp. 556–567.
Yao,  L. S., 1980, “Analysis of Heat Transfer in Slightly Eccentric Annuli,” ASME J. Heat Transfer, 102, pp. 279–284.
Millsaps, K. T., and Martinez-Sanchez, M., 1993, “Dynamic Forces From Single Gland Labyrinth Seals: Part II-Upstream Coupling,” ASME Paper No. 93-GT-322.

Figures

Grahic Jump Location
Injection labyrinth seal configuration (not to scale). [Tooth clearance=0.22 mm (0.00866 in.); tooth height=3.175 mm (0.125 in.); tooth pitch=3.175 mm (0.125 in.); seal length=63.5 mm (2.5 in.); shaft radius=64.69 mm (2.54684 in.)], [Injection Location A: x/L=0.16; B: x/L=0.26; C: x/L=0.37].
Grahic Jump Location
Geometrical and kinematical relationship in a whirling rotor, [Ω: whirling speed; ω: rotating speed]
Grahic Jump Location
Geometrical representation of the Taylor series expansion of variable on the displaced rotor surface [Ω: whirling speed; ω: rotating speed]
Grahic Jump Location
Axial distribution of the first-order pressure components
Grahic Jump Location
Axial distribution of the first-order circumferential velocity components
Grahic Jump Location
Axial distribution of the first-order axial velocity components
Grahic Jump Location
Radial distribution of the first-order pressure components at injection location A (x/L=0.16)
Grahic Jump Location
Radial distribution of the first-order circumferential velocity components at injection location A (x/L=0.16)
Grahic Jump Location
Radial distribution of the first-order axial velocity components at injection location A (x/L=0.16)
Grahic Jump Location
Variation of cross-coupled stiffness with pressure ratio for injection location A (x/L=0.16)
Grahic Jump Location
Variation of cross-coupled stiffness with pressure ratio for injection location A (x/L=0.16)
Grahic Jump Location
Variation of direct damping with pressure ratio for injection location A (x/L=0.16)
Grahic Jump Location
Variation of direct damping with pressure ratio for injection location A (x/L=0.16)
Grahic Jump Location
Variation of effective damping with pressure ratio for injection location A (x/L=0.16)
Grahic Jump Location
Variation of cross-coupled stiffness with shunt injection location
Grahic Jump Location
Variation of direct damping with shunt injection location
Grahic Jump Location
Variation of effective damping with shunt injection location

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In