Evaluation of the steady-state performance characteristics of a two-layered porous journal bearing under turbulent regimes

This present analysis aims to investigate the steady-state performance of two-layered porous bearing in turbulent regimes considering important design parameters, viz. load-carrying capacity, attitude angle, end flow rate and frictional parameter. Here, governing equations of flow through the porous layers have been derived with the help of Darcy’s law and the modified Reynolds equation has been derived considering the Beavers–Joseph’s criterion at the film interface on the clearance region. The effect of various design parameters (viz. Reynolds number, eccentricity ratio, slip coefficient, bearing number and bearing feeding parameter) on the bearing performance has been investigated under full-slip and no-slip conditions. Results obtained from the numerical analysis are presented in graphical form. This work also represents the three-dimensional pressure distribution in the film region of a two-layered porous journal bearing operating in turbulent regimes under various parametric conditions.