Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 2004.11a
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- Pages.162-170
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- 2004
Kinetic Theory Analysis for Thin-Film Bearings
기체분자운동론을 이용한 박막 베어링 해석
- Chung Chan Hong (School of Food, Bio & Chemical Eng., Daegu Univ.)
- 정찬홍 (대구대학교 식품)
- Published : 2004.11.01
Abstract
A kinetic theory analysis is used to study the ultra-thin gas flow field in gas slider hearings. 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 the flow field inside stepped and straight slider bearings. The results are compared well with those from the DSMC method. Special attention has been paid to the effect of the pressure build-up in front of a hearing, which has never been assessed before. It has been shown that the pressure build-up at the inlet is about
Keywords
- Thin Film Lubrication;
- Slider Bearing;
- Boltzmann Equation;
- BGK Model;
- Discrete Ordinate Method;
- Finite Difference Method