Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)
- Volume 21 Issue 2
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- Pages.224-234
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- 1997
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
DOI QR Code
The influence of fluid inertia and heat dissipation in fluid films
유체막에서 관성과 열 소산의 영향
- Kim, Eun-Pil (Dept.of Mechanical Engineering, Busan National University)
- 김은필 (부산대 기계공학부)
- Published : 1997.02.01
Abstract
It was demonstrated earlier that for laminar, isothermal flow of the lubricant in long journal bearings, inertia has negligible effect on the load carrying capacity and influences only the stability characteristics of the bearing. The question in the present paper is: 'will these conclusions of the isothermal theory remain valid in the presence of significant dissipation, or will lubricant inertia and dissipation interact non-linearly to bring about qualitative changes in bearing performance\ulcorner' The results obtained here assert that the effect of lubricant inertia on load carrying capacity remains negligible, irrespective of the rate of dissipation. The stability of the bearing is, however, affected by lubricant inertia. These results, although obtained here for long bearings with Sommerfeld and Gumbel boundary conditions, are believed to be applicable to practical bearing operations and affirm that bearing load may be calculated from classical, i. e., non-inertial theory.
Keywords
- Artificial Compressibility Formulation;
- Galerkin Mixed Formulation;
- Fluid Inertia;
- Heat Dissipation;
- Long Bearing
- 인위적인 압축 형식;
- 갈러킨 혼합 공식;
- 유체 관성;
- 열소산;
- 긴 베어링;