Robust Numerical Solution for Solving Elastohydrodynamic Lubrication (EHL) Problems using Total Variation Diminishing (TVD) Approach
This work provides a more efficient numerical method for engineers simulating elastohydrodynamic lubrication, reducing computational cost and simplifying the solution procedure.
The paper introduces total variation diminishing (TVD) schemes for solving elastohydrodynamic lubrication point contact problems, achieving up to O(n log n) computational complexity and handling high-order discretization directly without defect-correction, while maintaining robustness across a large range of load parameters.
In this study, we propose a class of total variation diminishing (TVD) schemes for solving pseudo-monotone variational inequality arises in elasto-hydrodynamic lubrication point contact problem. A limiter based stable hybrid line splittings are introduced on hierarchical multi-level grid. These hybrid splittings are designed by use of diffusive coefficient and mesh dependent switching parameter in the computing domain of interest. The spectrum of illustrated splittings is derived with the help of well known local Fourier analysis (LFA). Numerical tests validate the performance of scheme and its competitiveness to the previous existing schemes. Advantages of proposed splittings are observed in the sense that it reduces computational complexity (up to ($O(n\log n)$) and solve high order discretization directly (no defect-correction tool require) without perturbing the robustness of the solution procedure (i.e. it works well for large range of load parameters).