Open AccessResearches Concerning the Lubrication of Profiled Surfaces in Slip Boundary Conditions
Author(s) -
Alexandru Valentin Rădulescu,
I. Rădulescu
Publication year - 2020
Publication title -
incas buletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.282
H-Index - 10
eISSN - 2247-4528
pISSN - 2066-8201
DOI - 10.13111/2066-8201.2020.12.4.15
Subject(s) - dimple , reynolds equation , slip (aerodynamics) , lubrication , mechanics , materials science , boundary lubrication , newtonian fluid , fluid bearing , boundary value problem , reynolds number , non newtonian fluid , geometry , composite material , physics , mathematics , thermodynamics , mathematical analysis , turbulence
The paper investigates the squeeze film process for non-Newtonian fluids between two circular parallel profiled surfaces. The lower surface is characterized by the existence of a cylindrical or spherical dimple in the center, which is specific for profiled surfaces by texturing. In order to integrate the Reynolds equation, the slip boundary conditions on the upper surface have been assumed. Finally, the pressure distribution and the loading capacity of the non-Newtonian film are obtained.