The computational model is based on the dependence of viscosity and permeability of the porous layer of the pressure-layer hydrodynamic lubrication

Abstract

The computational model is based on the dependence of viscosity and permeability of the porous layer of the pressure-layer hydrodynamic lubrication

MA Mukutadze

Incoming article date: 09.04.2014

In this paper, based on the Navier-Stokes equations , the continuity equation , taking into account the pressure dependence of viscosity , Darcy equation taking into account the dependence of the permeability of the porous layer of the pressure given by the exact method of forming a self-similar solution of the problem of calculating the hydrodynamic journal bearing operating at three-layer lubricant . As a result, found the velocity field and the pressure in the lubricating layer and the analytical expressions for the components of the supporting forces and friction. Found rational bearing capacity values ​​characterizing different aspects of the functioning of the knot of friction , namely profile support surface ; special lubricating fluid interaction with the surfaces of the friction unit , taking into account the pressure dependence of viscosity ( the formation of intermediate layers with different lubricant viscosities ) .

Keywords: three-layer lubrication, maintenance force adapted profile stratified flow.