Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact Interactions
Multiscale hydrodynamics in line contacts were analyzed from the newly developed multiscale flow equations by respectively considering the weak, medium and strong fluid-contact interactions. In the studied line contact, the surface separation is on the same scale with the thickness of the adsorbe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Isfahan University of Technology
2021-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=57002&issue_ID=1015 |
| _version_ | 1798027863312564224 |
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| author | J. Li Y. Zhang |
| author_facet | J. Li Y. Zhang |
| author_sort | J. Li |
| collection | DOAJ |
| description | Multiscale hydrodynamics in line contacts were analyzed from the newly developed multiscale flow equations by respectively considering the weak, medium and strong fluid-contact interactions. In the studied line contact, the surface separation is on the same scale with the thickness of the adsorbed layer on the contact surface, and between the coupled adsorbed layers occurs the continuum fluid flow. The present study shows that when using the developed multiscale flow equations to calculate the surface separation for the weak or medium fluid-contact interactions, the value of the parameter k , which is in the important formulation , should be taken as about 5.0, different from its value 1.0 for the strong fluid-contact interaction. The study also shows that owing to the adsorbed layer effect, for a given operating condition, stronger the fluid-contact interaction, greater the surface separation. The results show the significant effect of the fluid-contact interaction in hydrodynamic line contacts in a quite wide range of the surface separation because of the multiscale hydrodynamic effect. |
| first_indexed | 2024-04-11T18:58:25Z |
| format | Article |
| id | doaj.art-59e5c2dfea1f4a58981497d6cfb27c36 |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-04-11T18:58:25Z |
| publishDate | 2021-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-59e5c2dfea1f4a58981497d6cfb27c362022-12-22T04:08:06ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722021-01-0114617671773.Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact InteractionsJ. Li0Y. Zhang1College of Mechanical Engineering, Changzhou University, Changzhou, Jiangsu Province, ChinaChangzhou High Technology Research Key Laboratory of Mould Advanced Manufacturing, Changzhou, Jiangsu Province, ChinaMultiscale hydrodynamics in line contacts were analyzed from the newly developed multiscale flow equations by respectively considering the weak, medium and strong fluid-contact interactions. In the studied line contact, the surface separation is on the same scale with the thickness of the adsorbed layer on the contact surface, and between the coupled adsorbed layers occurs the continuum fluid flow. The present study shows that when using the developed multiscale flow equations to calculate the surface separation for the weak or medium fluid-contact interactions, the value of the parameter k , which is in the important formulation , should be taken as about 5.0, different from its value 1.0 for the strong fluid-contact interaction. The study also shows that owing to the adsorbed layer effect, for a given operating condition, stronger the fluid-contact interaction, greater the surface separation. The results show the significant effect of the fluid-contact interaction in hydrodynamic line contacts in a quite wide range of the surface separation because of the multiscale hydrodynamic effect.http://jafmonline.net/JournalArchive/download?file_ID=57002&issue_ID=1015adsorbed layer; contact; fluid; hydrodynamics; multiscale. |
| spellingShingle | J. Li Y. Zhang Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact Interactions Journal of Applied Fluid Mechanics adsorbed layer; contact; fluid; hydrodynamics; multiscale. |
| title | Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact Interactions |
| title_full | Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact Interactions |
| title_fullStr | Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact Interactions |
| title_full_unstemmed | Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact Interactions |
| title_short | Multiscale Hydrodynamics in Line Contacts with Different Fluid-Contact Interactions |
| title_sort | multiscale hydrodynamics in line contacts with different fluid contact interactions |
| topic | adsorbed layer; contact; fluid; hydrodynamics; multiscale. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=57002&issue_ID=1015 |
| work_keys_str_mv | AT jli multiscalehydrodynamicsinlinecontactswithdifferentfluidcontactinteractions AT yzhang multiscalehydrodynamicsinlinecontactswithdifferentfluidcontactinteractions |