Advanced modeling of lubricated interfaces in general curvilinear grids

Tackling fluid-flow problems involving intricate surface geometries has been the catalyst for a plethora of numerical investigations aimed at accommodating curved complex boundaries. An example is application body-fitted curvilinear coordinate transformation, where one-to-one correspondence grid points from non-orthogonal in physical domain to an orthogonal computational achieved. In lubricated interfaces, such conversion challenging due complexity governing equations mapped-grid, instabilities exhibited by their non-linearities and severity operating conditions. The present contribution proposes Reynolds-based, finite volume fluid–structure interaction (FSI) framework solving thermal elastohydrodynamic lubrication (TEHL) mapped onto grids domain. We demonstrate how strong conservation form pertinent can be expressed three-dimensional discretised using method ensure enforce mass-conserving cavitation Numerical experimental benchmarks showcase robustness versatility proposed simulate diverse range problems, hence achieving predictive tool that would enable shift towards tribology-aware design.