Investigation of the Tribological Performance of Heterogeneous Slip/No-Slip Journal Bearing Considering Thermo-Hydrodynamic Effects

The slip boundary has an important influence on hydrodynamic journal bearing. However, less attention been paid to the positive effect of thermal behaviour. In this study, a computational fluid dynamics (CFD) analysis investigating thermo-hydrodynamic (THD) characteristics heterogeneous slip/no-slip bearings running under steady, incompressible, and turbulent conditions is presented. A comprehensive made investigate THD behaviours in terms lubricant pressure, temperature distribution, volume fraction vapor, load-carrying capacity when they are different shaft rotational speeds. multiphase cavitation model adopted represent real operational condition Numerical results show that bearing can be significantly increased by up 100% depending speed. It also observed there optimal speed for maximizing capacity. An insightful new finding revealed numerical framework, wherein it found introducing pattern, maximum reduced 25% comparison with conventional