A semi analytical approach in thermal analysis of Hydrodynamic lubrication of journal bearing

Abstract Hydrodynamic lubrication of journal bearing considering rotation of the journal including the effects of temperature is studied in this work. It describes the theoretical analysis of power law fluid film lubrication of journal. A semi analytical solution is obtained by solving the continuity equation and momentum equation along with thermal energy equation under isothermal boundaries. The obtained results are compared and found that they are in good agreement with the results available in the literature. Further, the delta profile which is the location of the points of zero velocity gradients is also presented in order to get the simplified form the Reynolds and energy equations. The obtained results are compared with the experimental results and seen to be a good agreement with the effect of temperature.