Publications on Annular Pressure Seals

 

MAJOR APPLICATION:  Process fluid lubrication, cryogenic liquid turbo pumps

High Speed / High Pressure Turbulent Flow Seals

Sponsors: NASA Glenn RC (1993-1996), Pratt & Whitney (1992-93), TAMU Turbomachinery Research Consortium

 

MAJOR TOPICS: Select below

Gas Seals: Honeycomb, Pocket Damper & Labyrinth Seals

Liquid Seals: Turbulent Flow Annular Seals, including 2-phase flow

 

Honeycomb Wet Seal & Bubbly Seal

San Andrés, L.,  2012, “Rotordynamic Force Coefficients of Bubbly Mixture Annular Pressure Seals, ”ASME J. Eng. Gas Turbines Power, 134 (Feb), p. 022503 [ASME Paper GT2011-45264]

 

Honeycomb, Pocket Damper & Labyrinth - Annular Gas Seals

San Andrés, L., and T. Soulas, 2007, “A Bulk Flow Model for Off-Centered Honeycomb Gas Seals,” ASME Journal of Engineering for Gas Turbines and Power, 129, pp. 185-194. (ASME Paper 2002-GT-30286)

Li, J., L. San Andrés, R. Aguilar, and J.M. Vance, 2000, “Dynamic Force Coefficients of a Multiple-Blade, Multiple-Pocket Gas Damper Seal: Test Results and Analytical Validation," ASME Journal of Tribology, Vol. 122, 1, pp. 317-322 (ASME Paper 99-TRIB-35).

Li, J., D. Ransom, D., L. San Andrés, and J.M. Vance, 1999, "Comparison of Predictions with Test Results for Rotordynamic Coefficients of a Four-Pocket Gas Damper Seal," ASME Journal of Tribology, Vol. 121, 2, pp. 363-369 (ASME Paper 98-TRIB-29).

Ransom, D., J. Li, L. San Andrés, and J.M. Vance, 1999, "Experimental Force Coefficients for a Two-Bladed Labyrinth Seal and a Four-Pocket Damper Seal," ASME Journal of Tribology, Vol. 121, 2, pp. 370-376 (ASME Paper 98-TRIB-28).

Li, J., San Andrés, L., and J. Vance, 1999, "Bulk Flow Analysis of Multiple-Pocket Gas Damper Seals," ASME Journal of Gas Turbines and Power, Vol. 121, 2, pp. 355-362 (ASME Paper 98-GT-013).

Ransom, D., and L. San Andrés, 1999, "Identification of Force Coefficients from a Gas Annular Seal, Effect of Transition Flow Regime to Turbulence," Tribology Transactions, 42, 3, pp. 487-494 (STLE Paper No. 98-NP-5G-3).

Marquette, O., D. Childs, and L. San Andrés, 1997, "Eccentricity Effects on the Rotordynamic Coefficients of Plain Annular Gas Seals: Theory Versus Experiment," ASME Journal of Tribology, Vol. 119, 3, pp. 443-448(ASME Paper 96-TRIB-35).

Yang, Z., L. San Andrés and D. Childs, 1994, "Dynamic Force Performance of Gas Seals at Off-Center Conditions," STLE Tribology Transactions, Vol. 37, 1, pp. 33-44

Cardon, B.P, Vance, J.M., San Andrés, L. and Storace, A., 1993, "A Gas Operated Damper for Turbomachinery," ASME Journal of Engineering for Gas Turbines and Power, Vol. 115, 2, pp. 383-389

 

Turbulent Flow Process Fluid Annular Seals

San Andrés, L., T. Soulas, and P. Fayolle, 2007, “A Bulk Flow Model of Angled Injection Lomakin Bearing” ASME Journal of Engineering for Gas Turbines and Power, 129, pp. 195-204. (ASME Paper 2002-GT-30287).

TWO-PHASE (Cryogenic)
Arauz, G.,
and L. San Andrés, 1998, "Analysis of Two Phase Flow in Cryogenic Damper Seals, I: Theoretical Model, " ASME Journal of Tribology, Vol. 120, pp. 221-227(ASME Paper 97-Trib-12)
Arauz, G.,
and L. San Andrés, 1998, "Analysis of Two Phase Flow in Cryogenic Damper Seals, II: Model Validation and Predictions," ASME Journal of Tribology, Vol. 120, pp. 228-233 (ASME Paper 97-Trib-13)

Computational Models: Liquid Seals for Cryogenic Turbo Pumps

Zirkelback, N., and L. San Andrés, 1996, "Bulk-Flow Model for the Transition to Turbulence Regime in Annular Seals," STLE Tribology Transactions, Vol.39, 4, pp. 835-842 ( STLE Paper 96-AM-7B-3)

San Andrés, L., Yang, Z. and Childs, D., 1993, "Thermal Effects in Cryogenic Liquid Annular Seals, I: Theory and Approximate Solutions", ASME Journal of Tribology, Vol. 115, 2, pp. 267-276

Yang, Z., San Andrés, L. and Childs, D., 1993, "Thermal Effects in Cryogenic Liquid Annular Seals, II: Numerical Solution and Results", ASME Journal of Tribology, Vol. 115, 2, pp. 277-284

San Andrés, L., 1993, "Effect of Shaft Misalignment on the Dynamic Force Response of Annular Pressure Seals," STLE Tribology Transactions, Vol. 36, 2, pp. 173-182

San Andrés, L., Yang, Z. and Childs, D., 1993, "Importance of Heat Transfer from Fluid Film to Stator in Turbulent Flow Annular Seals," WEAR, Vol. 160, pp. 269-277

San Andrés, L., 1993, "Dynamic Force and Moment Coefficients for Short Length Annular Seals, ASME Journal of Tribology, Vol. 115, 1, pp. 61-70

San Andrés, L., Yang, Z. and Childs, D., 1992, "Thermohydrodynamic Analysis of Cryogenic Liquid Annular Seals," 5th NASA Conference on Advanced Earth-to-Orbit Propulsion Technology, Huntsville, Alabama, May, NASA CP 3174, Vol. I, pp. 468-487

San Andrés, L., 1991 "Analysis of Variable Fluid Properties, Turbulent Annular Seals," ASME Journal of Tribology, Vol. 113, pp. 694-702