Papers Published

  1. 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 (1990), pp. 183 - 188 .
    (last updated on 2007/04/06)

    Abstract:
    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.

    Keywords:
    Lubricants--Thermal Effects;Temperature Distribution;