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TECHNICAL PAPERS

Numerical Three-Dimensional Pressure Patterns in a Recess of a Turbulent and Compressible Hybrid Journal Bearing

[+] Author and Article Information
Mathieu Helene, Mihai Arghir, Jean Frene

LMS, Université de Poitiers, UFR Sciences SP2MI, Téléport 2, Blvd. Pierre et Marie Curie, BP 30719, 86962 Futuroscope Chasseneuil Cedex, France

J. Tribol 125(2), 301-308 (Mar 19, 2003) (8 pages) doi:10.1115/1.1506327 History: Received February 20, 2002; Revised July 11, 2002; Online March 19, 2003
Copyright © 2003 by ASME
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References

Pan,  C. H. T., 1974, “Calculation of Pressure, Shear and Flow in Lubrication Films for High Speed Bearings,” ASME J. Tribol., 98, pp. 167–174.
Constantinescu,  V. N., and Galetuse,  S., 1976, “Pressure Drop Due to Inertia Forces in Step Bearings,” ASME J. Tribol., 98, pp. 167–174.
Tipei,  N., 1982, “Flow and Pressure Head at the Inlet of Narrow Passages Without Upstream Free Surface,” ASME J. Tribol., 104, pp. 196–202.
Tuck,  E. O., and Bentwich,  M., 1983, “Sliding Sheets: Lubrication with Comparable Viscous and Inertia Forces,” J. Fluid Mech., 135, pp. 51–69.
Chaomleffel, J. P., 1983, “Influence of Inertial Forces on Hybrid Lubrication,” Ph.D. thesis, INSA de Lyon, France.
Constantinescu, V. N., 1987, “On Conditions at the Inlet Edge of a Lubricated Film Operating at Large Reynolds Numbers,” 5thConference on Friction, Lubrication and Wear, Bucharest Ecritura Academiei Romane.
Arghir, M., Attar, S. E., and Nicolas, D., 1996, “Pressure Drop In A Hydrostatic Pocket. Experimental and Theoretical Results,” Proc. Leeds-Lyon Symposium, Elsevier Science B.V., pp. 423–432.
Ho,  Y. S., and Chen,  N. N., 1984, “Pressure Distribution in a Six Pocket Hydrostatic Journal Bearing,” Wear, 98, pp. 89–100.
Chaomleffel,  J. P., and Nicolas,  D., 1985, “Experimental Investigations of Hybrid Journal Bearings,” Tribol. Int., 19, pp. 253–259.
San Andrés, L., and Velthuis, J., 1991, “Laminar Flow in a Recess of a Hydrostatic Bearing,” STLE Paper No. 91-TC-3B3.
Braun,  M. J., and Dzodzo,  M., 1995, “Effects of the Feedline and Hydrostatic Pocket Depth on the Flow Patterns and Pressure Distribution,” ASME J. Tribol., 117(2), pp. 224–233.
Hélène, M., Arghir, M., and Fre⁁ne, J., 2001, “Numerical Study of the Pressure Pattern in a Two-Dimensional Hybrid Journal Bearing Recess. Laminar and Turbulent Flow Results,” ASME J. Tribol., accepted for publication in ASME Journal of Tribology.
Braun, M. J., Dzodzo, M., and Lattime, S., 1996, “Some Qualitative and Quantitative Aspects of Flow in a Hydrostatic Journal Bearing Pocket,” ASME Fluid Engineering Division Conference, 239 , ASME, New York, pp. 109–114.
Braun,  M. J., and Dzodzo,  M., 1996, “Three Dimensional Flow and Pressure Patterns in a Hydrostatic Journal Bearing Pocket,” ASME J. Tribol., 119, pp. 711–719.
Braun, M. J., and Dzodzo, M., 1996, “A Three Dimensional Model for a Hydrostatic Bearing,” presented at the 32nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference.
Patankar, S. V., 1980, Numerical Heat Transfer and Fluid Flow, Hemisphere, Washington, D.C.
Ferziger, J. L., and Peric, M., 1996, Computational Methods for Fluid Dynamics, Springer Verlag, Heidelberg.
Launder,  B. E., and Spalding,  D. B., 1974, “The Numerical Computation of Turbulent Flows,” Comput. Methods Appl. Mech. Eng., 3, pp. 269–289.
Roache,  P. J., 1994, “Perspective: A Method for Uniform Reporting of Grid Refinement Studies,” J. Fluids Eng., 116, pp. 405–413.
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Figures

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(a) Circumferential cross section of the recess; and (b) axial cross section of the recess
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(a) Initial coarse three-dimensional; mesh and (b) final refined three-dimensional mesh
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(a) Pressure wire mesh plot on sliding wall for M=0.2; (b) pressure wire mesh plot on sliding wall for M=0.45; and (c) pressure wire mesh plot on sliding wall for M=0.75
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(a) Slice of the runner pressure surface in the circumferential direction for different axial exit Mach numbers; and (b) slice of the runner pressure surface in the axial direction for different axial exit Mach numbers
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(a) Pressure wire mesh plot on sliding wall for Rea=2.104; and (b) pressure wire mesh plot on sliding wall for Rea=4.105
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(a) Slice of the runner pressure surface in the circumferential direction for different feeding Reynolds numbers; and (b) slice of the runner pressure surface in the axial direction for different feeding Reynolds numbers
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(a) Pressure wire mesh plot on sliding wall for e/H=0; and (b) pressure wire mesh plot on sliding wall for e/H=8
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(a) Slice of the runner pressure surface in the circumferential direction for different e/H aspect ratios; and (b) slice of the runner pressure surface in the axial direction for different e/H aspect ratios
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(a) Detail of the 135 deg injection refined mesh; and (b) detail of the 165 deg injection refined mesh
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(a) Pressure wire mesh plot on sliding wall for α=135 deg; and (b) pressure wire mesh plot on sliding wall for α=165 deg
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(a) Slice of the runner pressure surface in the circumferential direction for different injection angle; and (b) slice of the runner pressure surface in the axial direction for different injection inclinations
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Pressure wire mesh plot on sliding wall for Lc2=(Lc−d0)/4
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Slice of the runner pressure surface in the circumferential direction for the two circumferential feedhole locations

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