Isothermal hydrodynamic lubrication
Mechanical face seals. Hydrodynamic and mixed lubrication

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BM5422 V1 Article

Isothermal hydrodynamic lubrication
Mechanical face seals. Hydrodynamic and mixed lubrication

Authors : Noël BRUNETIÈRE, Bernard TOURNERIE

Review date: March 6, 2025 | Lire en français

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1. Isothermal hydrodynamic lubrication

1.1 Geometric and kinematic model with three degrees of freedom

The study of lubrication between the surfaces of a mechanical seal requires the definition of a geometric and kinematic model. This model makes it possible to determine the position and velocity of each point on the surfaces. This point is covered in detail in a previous article [BM 5 421] . However, it is worth recalling a few points.

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