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Numerical Analysis of Ultra-Thin Gas Film Lubrication  

Chung C. H. (대구대학교 화학공학과)
Publication Information
Journal of computational fluids engineering / v.9, no.4, 2004 , pp. 64-70 More about this Journal
Abstract
A kinetic theory analysis is used to study the ultra-thin gas flow field in a gas slider bearing. The Boltzmann equation simplified by a collision model is solved by means of a finite difference approximation with the discrete ordinate method. Calculations are made for a flow in a micro-channel between an inclined slider and a moving disk drive platter The results are compared well with those from the DSMC method. The present method does not suffer from statistical noise which is common in particle-based methods and requires much less computational effort.
Keywords
Thin Film Lubrication; Slider Bearing; Boltzmann Equation; BGK Model; Discrete Ordinate Method; Finite Difference Method;
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