Abstract
A mass-conservative average flow model based on the finite element method (FEM) is introduced to predict the performances of textured surfaces applied in mechanical seals or thrust bearings. In this model, the Jakobsson-Floberg-Olsson (JFO) boundary conditions are applied to the average flow model for ensuring the mass-conservative law. Moreover, the non-uniform triangular grid is utilized, which can deal with the problem of complex geometric shapes. By adopting the modeling techniques, the model proposed here is capable of dealing with complex textured surfaces. The algorithm is proved correct by the numerical experiment. In addition, the model is employed to gain further insight into the influences of the dimples with different shapes and orientations on smooth and rough surfaces on the load-carrying capacity.
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