Pressure distribution in orifice-compensated turbulent hydrostatic bearing with fluid inertia effects using numerical simulations via Navier-Stokes

Abstract

Significant progress in turbo-machinery's speed is made recently. To cope with that; many fluids having large differences in rheological properties are introduced as lubricant in hydrostatic bearing systems. The present study aims to improve the understanding of the pressure patterns within hydrostatic bearing flat pads according to different parameters. The main ones are the squeeze film velocity, the feeding pressure and the fluid viscosity. To consider efficiently, the influence of the turbulent and inertia effects numerical simulation are based on transient Navier-Stokes equations. The results of the present study confirm many patterns already mentioned by other authors, and also showed different flow behaviour in terms of vortex evolution according to the studied parameters combinations. This is part of a special issue featuring papers based on presentations given at the TurkeyTrib'15 Conference, which have been revised and extended before inclusion in Tribology -Materials, Surfaces & Interfaces.

Hydrostatic Pressure Distribution of Oil Lubrication Film for Internal Gear Motors and Pumps: Solution of Resistance Network and Compare to CFD

“…Hydrostatic lubrication is suitable for heavy external load and slow rotation of the shaft. Lots of research so far [1][2][3][4][5] have been studied the effect of hydrostatic pressure distribution on the stiffness and damper of the oil film.…”