Evaluation of inertia effect in finite hydrodynamic bearings with surface texturing using spectral element solver
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Fluid inertia can have a major effect on the pressure distribution in hydrodynamic bearings with surface texturing. So far, however, the effect has been ignored in the simulation of finite bearings. In this work, we develop a spectral element solver for the Navier-Stokes equations specifically tailored to slider finite bearings textured with multiple spherical dimples. Using the solver, we studied the effect of inertia on the load-carrying capacity for 90 different bearing configurations. Our results show that the spatial arrangement of dimples has a significant impact on the inertia effect. For the Reynolds number 50 and the ratio 10 of dimple length to dimple depth, a change from full to partial texturing reduced the effect by roughly 85%.
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Evaluation of discretization and integration methods for the analysis of finite hydrodynamic bearings with surface texturingWoloszynski, T.; Podsiadlo, P.; Stachowiak, Gwidon (2015)Efficient numerical methods are essential in the analysis of finite hydrodynamic bearings with surface texturing. This is especially evident in optimization and parametric studies where the discretization and integration ...
Evaluation of Discretisation and Integration Methods for the Analysis of Hydrodynamic Bearings With and Without Surface TexturingWoloszynski, Tomasz; Podsiadlo, Pawel; Stachowiak, Gwidon (2013)Surface texturing has been demonstrated to improve tribological performance of hydrodynamic bearings. Because the texturing increases complexity of a surface, numerical methods are required. However, no comparison study ...
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