- Knight, J.D. and Niewiarowski, A.J., Effects of two film rupture models on the thermal analysis of a journal bearing,
Journal of Tribology, Transactions of the ASME, vol. 112 no. 2
pp. 183 - 188 .
(last updated on 2007/04/06)
A model for the thermal behavior of lubricant in the cavitated regions of a journal bearing is presented. The model assumes a bubbly mixture of liquid and air and includes the calculation of local mixture properties for the fluid film. Temperature in the film is calculated by a first order approximate energy equation that includes heat transfer between the film and its boundaries. A second order profile is assumed to represent the temperature distribution across the film. The classical Reynolds equation is applied, using a viscosity that does not vary across the film. Results of calculations are compared with published experimental results and with a prior theory that uses an effective length calculation in the cavitation zone.
Lubricants--Thermal Effects;Temperature Distribution;