Identifying the optimal interfacial parameter correlated with hydrodynamic lubrication
Abstract The effects of boundary (liquid/solid) slip on hydrodynamics are well recognized. However, it is extremely difficult to quantify in-situ boundary slip in a lubrication contact. Therefore, an effective interfacial parameter that is well correlated with the lubrication effect is of practical...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2016-12-01
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| Series: | Friction |
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| Online Access: | http://link.springer.com/article/10.1007/s40544-016-0131-9 |
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| _version_ | 1849315597992591360 |
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| author | Liang Guo Patrick Wong Feng Guo |
| author_facet | Liang Guo Patrick Wong Feng Guo |
| author_sort | Liang Guo |
| collection | DOAJ |
| description | Abstract The effects of boundary (liquid/solid) slip on hydrodynamics are well recognized. However, it is extremely difficult to quantify in-situ boundary slip in a lubrication contact. Therefore, an effective interfacial parameter that is well correlated with the lubrication effect is of practical significance. This paper presents an examination of common interfacial parameters, including surface tension, contact angle, contact angle hysteresis, and a recently proposed spreading parameter. Specimen surfaces of different hydro/oleophobicity were prepared and characterized using the aforementioned interfacial parameters. These samples were further used as bearing surfaces in hydrodynamic lubrication tests. The correlations of these parameters with the measured lubricating film thickness were examined and compared. The key parameter closely related to the hydrodynamic effect was identified. |
| format | Article |
| id | doaj-art-5a63110bd5ed4bc1b55b63ef6bd5ae0d |
| institution | Kabale University |
| issn | 2223-7690 2223-7704 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Friction |
| spelling | doaj-art-5a63110bd5ed4bc1b55b63ef6bd5ae0d2025-08-20T03:52:06ZengTsinghua University PressFriction2223-76902223-77042016-12-014434735810.1007/s40544-016-0131-9Identifying the optimal interfacial parameter correlated with hydrodynamic lubricationLiang Guo0Patrick Wong1Feng Guo2Department of Mechanical and Biomedical Engineering, City University of Hong KongDepartment of Mechanical and Biomedical Engineering, City University of Hong KongMechanical Engineering Department, Qingdao Technological UniversityAbstract The effects of boundary (liquid/solid) slip on hydrodynamics are well recognized. However, it is extremely difficult to quantify in-situ boundary slip in a lubrication contact. Therefore, an effective interfacial parameter that is well correlated with the lubrication effect is of practical significance. This paper presents an examination of common interfacial parameters, including surface tension, contact angle, contact angle hysteresis, and a recently proposed spreading parameter. Specimen surfaces of different hydro/oleophobicity were prepared and characterized using the aforementioned interfacial parameters. These samples were further used as bearing surfaces in hydrodynamic lubrication tests. The correlations of these parameters with the measured lubricating film thickness were examined and compared. The key parameter closely related to the hydrodynamic effect was identified.http://link.springer.com/article/10.1007/s40544-016-0131-9bearingslipoleophobicitythin hydrodynamic film |
| spellingShingle | Liang Guo Patrick Wong Feng Guo Identifying the optimal interfacial parameter correlated with hydrodynamic lubrication Friction bearing slip oleophobicity thin hydrodynamic film |
| title | Identifying the optimal interfacial parameter correlated with hydrodynamic lubrication |
| title_full | Identifying the optimal interfacial parameter correlated with hydrodynamic lubrication |
| title_fullStr | Identifying the optimal interfacial parameter correlated with hydrodynamic lubrication |
| title_full_unstemmed | Identifying the optimal interfacial parameter correlated with hydrodynamic lubrication |
| title_short | Identifying the optimal interfacial parameter correlated with hydrodynamic lubrication |
| title_sort | identifying the optimal interfacial parameter correlated with hydrodynamic lubrication |
| topic | bearing slip oleophobicity thin hydrodynamic film |
| url | http://link.springer.com/article/10.1007/s40544-016-0131-9 |
| work_keys_str_mv | AT liangguo identifyingtheoptimalinterfacialparametercorrelatedwithhydrodynamiclubrication AT patrickwong identifyingtheoptimalinterfacialparametercorrelatedwithhydrodynamiclubrication AT fengguo identifyingtheoptimalinterfacialparametercorrelatedwithhydrodynamiclubrication |