Thermohydrodynamic Analysis of Process-Liquid Hydrostatic Journal Bearings in Turbulent Regime, Part I: The Model and Perturbation Analysis-Reference-Cited by-同舟云学术

Thermohydrodynamic Analysis of Process-Liquid Hydrostatic Journal Bearings in Turbulent Regime, Part I: The Model and Perturbation Analysis

Published:1995-09-01 Issue:3 Volume:62 Page:674-678
ISSN:0021-8936
Container-title:Journal of Applied Mechanics
language:en
Short-container-title:

Author:

Yang Zhou¹,San Andres L.²,Childs D. W.²

Affiliation:

1. Cummings Engine Company, Inc., Columbus, IN 47201

2. Mechanical Engineering Department, Texas A&M University, College Station, TX 77843

Abstract

A bulk-flow thermohydrodynamic (THD) analysis is developed for prediction of the static and dynamic performance characteristics of turbulent-flow, process-liquid, hydrostatic journal bearings (HJBs). Pointwise evaluation of temperature and hence liquid properties is achieved through the solution of the energy equation in the fluid film with insulated boundaries, and justified for fluid film bearings with external pressurization. Fluid inertia within the film lands and at recess edges is preserved in the analysis. Flow turbulence is accounted through turbulence shear parameters based on friction factors derived from Moody’s formulae. The effects of fluid compressibility and temperature variation in the bearing recesses are included. Numerical solution and results are presented in the second part of this work and compared with some limited experimental data for a liquid hydrogen (LH2) bearing.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Link

http://asmedigitalcollection.asme.org/appliedmechanics/article-pdf/62/3/674/5464490/674_1.pdf

Reference28 articles.

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3. Braun M. J. , DonQ., and ChoyF. K., 1993, “The Effects of a Hydrostatic Pocket Aspect Ratio, and its Supply Orifice Position and Attack Angle on Steady-State Flow Patterns, Pressure and Shear Characteristics,” ASME Journal of Tribology, Vol. 115, pp 678–685.

4. Butner, M., and Murphy, B., 1986, “SSME Long Life Bearings,” NASA Report, CR179455.

5. Chaomleffel J. P. , and NicholasD., 1986, “Experimental Investigation of Hybrid Journal Bearings,” Tribology International, Vol. 19, pp. 253–259.

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