Roughness Effect on Thermo-Elasto-Hydrodynamic Performance of a 170ᵒ -Arc Partial Journal Bearing

In the current analysis, effects of circumferential scratches along inner surface a 170ᵒ -arc partial journal bearing has been numerically investigated. Their impact on thermo-elasto-hydrodynamic performance characteristics, including maximum pressure, temperature, deformation, and stress, examined thoroughly. The ANSYS Fluent CFD commercial code was employed to tackle iterative solution flow heat transfer patterns in fluid film domain. They are then applied Static Structure solver compute deformation stress resulted solid zone. A wide range operating conditions considered, eccentricity ratio ( ) scratch depth ). contrast, length-diameter (L/D) rotation speed (N) have fixed at 0.77 1500 rpm, respectively. thermo-hydrodynamic all computed. It found that direct effect bearings. Meanwhile, deep central important, especially equal 0.224 mm.