Abstract:
The Reynolds equation, which describes the lubrication effect arising through the interaction of two physical surfaces that are separated by a thin fluid film, is formulated with respect to a continuously evolving third surface that is described by a time-dependent curvilinear coordinate system. The proposed formulation essentially addresses lubrication mechanics at interfaces undergoing large deformations and a priori satisfies all objectivity requirements, neither of which are features of the classical Reynolds equation. As such, this formulation may be particularly suitable for non-stationary elastohydrodynamic lubrication problems associated with soft interfaces. The ability of the formulation to capture finite-deformation effects and the influence of the choice of the third surface are illustrated through analytical examples.
Keywords:
Reynolds equation, elastohydrodynamic lubrication, soft interfaces, time-dependent curvilinear coordinates, finite deformations, objectivity
Affiliations:
| Temizer I. | - | Bilkent University (TR) |
| Stupkiewicz S. | - | IPPT PAN |
