Publications [#319956] of Josiah D. Knight

Papers Published

  1. Knight, JD; Niewiarowski, AJ, Effects of two film rupture models on the thermal analysis of a journal bearing, American Society of Mechanical Engineers (Paper) (December, 1989), pp. TRIB35-TRIB6p
    (last updated on 2023/06/01)

    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 of 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.

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