CFD-analysis of Partiall Surface Groove Texture on Hydrodynamic Lubrication

Surface texturing has been successfully applied to industry fields as a means for enhancing tribological properties of mechanical components.A computational fluid dynamics(CFD)model is developed to study the hydrodynamic capability of partially surface groove texturing on fully lubricated sliding.The effects of location parameter L,which is used to characterize a pattern of array on the friction pair surface,groove width D and Reynolds number Re on load bearing capacity of oil film are discussed in detail.The results show that location parameter Lhas a significant effect on load bearing capacity with low Reynolds number Re.When Lvaries from 0.4 to 0.05,e.g.,the load bearing capacity has an increase of 58.99% at Re=3 and D=0.2.However,an increase in Reynolds number Re may reduce this effect.Additionally,an optimal groove width Dfor the maximum load bearing capacity exists at a special depth of groove.