Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-05T14:57:57.860Z Has data issue: false hasContentIssue false
  • English
  • Français

Thermohydrodynamic behaviors of finite journal bearings withcavitation

Published online by Cambridge University Press:  16 March 2011

Alireza Arab Solghar  and
S. A. Gandjalikhan Nassab
Get access

Abstract

This paper presents thermohydrodynamic solutions for a finite-width journal bearing withsingle axial groove on the crown by considering turbulent effects in lubricant film.Appropriate governing equations and boundary conditions are used for the fluid flow andheat transfer process occurring in finite full journal bearings. A general computerprogram is developed to numerically solve the set of governing equations. Results areprovided for THD characteristics of journal bearing in terms of Reynolds number, clearanceratio and eccentricity ratio. Good agreement with published experimental results wasachieved. The results indicate that the bearing temperature field and pressure field areconsiderably influenced by the journal bearing parameters.

Keywords

Journal bearingturbulent flowsimulation
Type
Research Article
Information
Mechanics & Industry , Volume 12 , Issue 1 , 2011 , pp. 5 - 15
Copyright
© AFM, EDP Sciences 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Milne, A.A., On the effect of lubricant inertia in the theory of hydrodynamic lubrication, ASME J. Basic Eng. 81 (1959) 239 Google Scholar
Fritz, R.J., The effect of an annular fluid on the vibration of a long rotor; Part I, Theory, ASME J. Basic Eng. (1970) 923–929 CrossRefGoogle Scholar
A.J. Smalley, J.H. Vohr, V. Castelli, C. Wachmann, An analytical and experimental investigation of turbulent flow in bearing films involving convective fluid inertia forces, ASME Paper 73-LubS-l (1973)
Saibel, E.S., Macken, N.A., Nonlaminar behavior in bearings: a critical review of the literature, J. Lubr. Technol. 96 (1974) 174–181 CrossRefGoogle Scholar
Taylor, C.M., Dowson, D., Turbulent lubrication theory- application to design, J. Lubr. Technol. 96 (1974) 36–47 CrossRefGoogle Scholar
Constantinescu, V.N., On turbulent lubrication, Proc. Inst. Mech. Eng., London 173 (1959) 881–900 CrossRefGoogle Scholar
Ng, C.W., Pan, C.H.T., A linearized turbulent lubrication theory, ASME J. Basic Eng. 87 (1965) 675–688 CrossRefGoogle Scholar
Ho, M.K., Vohr, J.H., Application of energy model of turbulence to calculation of lubricant flows, J. Lubr. Technol. 96 (1974) 95–102 CrossRefGoogle Scholar
Hirs, G.G., A bulk-flow theory for turbulence in lubricant films, ASME J. Lubr. Technol. 95 (1973) 137–146 CrossRefGoogle Scholar
J.W. Lund, E.B. Arwas, A simultaneous solution of the lubrication and the energy equations for turbulent journal bearing films. MT1 Rep. No. 64-TR-31, Mech. Tech. Inc. (1964)
Constantinescu, V.N., Basic relations in turbulent lubrication and their extension to include thermal effects, J. Lubr. Technol. 95 (1973) 147–154 CrossRefGoogle Scholar
Safar, Z., Szeri, A.Z., Thermohydrodynamic lubrication in laminar and turbulent regimes, Trans. ASME, J. Lubr. Technol. 96 (1974) 48–57 CrossRefGoogle Scholar
Safar, Z., Inertia and thermal effects in turbulent flow journal bearing, Wear 53 (1979) 325–335 CrossRefGoogle Scholar
Hashimoto, H., Wada, S., Theoretical approach to turbulent lubrication problems including surface roughness effects, Trans, ASME, J. Lubr. Technol. 111 (1989) 17–22 Google Scholar
Venkaeswarlu, K., Rao, N.J., Venugopal, E.V., Akella, S., Three-dimensional laminar and turbulent lubrication in journal bearings, Wear 126 (1990) 263–279 CrossRefGoogle Scholar
Tieu, A.K., Kosasih, P.B., An expression of Reynolds stress in turbulent lubrication theory. Trans. ASME, J. Lubr. Technol. 114 (1992) 57–60 Google Scholar
Granville, P.S. A modified Van Driest formula for the mixing length of turbulent boundary layers in pressure gradients, ASME, J. Fluids Eng. 111 (1989) 94–97 CrossRefGoogle Scholar
Lee, D.W., Kim, K.W., Turbulent lubrication theory using Algebraic Reynolds Stress model in finite journal bearings with cavitation boundary conditions, JSME, Int. J., Series II 33 (1990) 200–207 Google Scholar
Chun, S.M., Ha, D.H., Thermohydrodynamic lubrication analysis of high-speed journal bearing considering variable density and variable specific heat, Trib. Int. 37 (2004) 405–413 CrossRefGoogle Scholar
Peng, Z.C., Khonsari, M.M., A thermohydrodynamic analysis of foil journal bearings, Trans. ASME, J. Trib. 128 (2006) 534–541 CrossRefGoogle Scholar
Abe, K., Kondoh, T., Nagano, Y., A new turbulence model for predicting fluid flow and heat transfer in separating and reattaching flows-1. Flow field calculation, Int. J. Heat Mass Transf. 37 (1994) 139–151 CrossRefGoogle Scholar
Mistry, K., S. Biswas Study of thermal profile and cavitation in a circular journal bearing, Wear 159 (1992) 79–87 CrossRefGoogle Scholar
Heshmat, H., Pinkus, O., Mixing inlet temperatures in hydrodynamic bearings, ASME J. Trib. 108 (1986) 221–248 CrossRefGoogle Scholar
Khonsari, M.M., Jang, J.Y., M, Fillon On the generalization of thermohydrodynamic analyses for journal bearings, Trans. ASME, J. Trib. 118 (1996) 571–580 CrossRefGoogle Scholar
Heshmat, H., The mechanism of cavitation in hydrodynamic lubrication, Trib. Trans. 34 (1991) 177–186 CrossRefGoogle Scholar
Wada, S., Hashimoto, H., Turbulent lubrication theory using the frictional law, Bull. JSME 22 (1979) 257–263 CrossRefGoogle Scholar