The effect of liquid viscosity on sliding friction coefficient of wet granular materials
The mechanical properties of wet granular materials are different to those of dry granular matter. If the wet granular medium is not completely saturated, the capillary bridges form and the surface tension changes the elastic properties of the medium. We studied the sliding friction of a sledge over...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_08003.pdf |
| _version_ | 1819143946485366784 |
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| author | Aliasgari Mojgan Maleki-Jirsaraei Nahid Rouhani Shahin |
| author_facet | Aliasgari Mojgan Maleki-Jirsaraei Nahid Rouhani Shahin |
| author_sort | Aliasgari Mojgan |
| collection | DOAJ |
| description | The mechanical properties of wet granular materials are different to those of dry granular matter. If the wet granular medium is not completely saturated, the capillary bridges form and the surface tension changes the elastic properties of the medium. We studied the sliding friction of a sledge over wet granular media and found that surface tension and viscosity have crucial effect on the dynamic friction coefficient of the wet granular media. Higher the viscosity of the interstitial liquid results in higher dynamic friction coefficient. Furthermore, viscous interstitial liquid shows time dependency behaviour. Viscosity makes the friction coefficient to increase since causes more the energy loss. |
| first_indexed | 2024-12-22T12:34:19Z |
| format | Article |
| id | doaj.art-2add0d983748421296df48638871ad49 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-22T12:34:19Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-2add0d983748421296df48638871ad492022-12-21T18:25:35ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012490800310.1051/epjconf/202124908003epjconf_pg2021_08003The effect of liquid viscosity on sliding friction coefficient of wet granular materialsAliasgari Mojgan0Maleki-Jirsaraei Nahid1Rouhani Shahin2Complex Systems Laboratory, Physics Department, Alzahra UniversityComplex Systems Laboratory, Physics Department, Alzahra UniversityPhysics Department, Sharif University of TechnologyThe mechanical properties of wet granular materials are different to those of dry granular matter. If the wet granular medium is not completely saturated, the capillary bridges form and the surface tension changes the elastic properties of the medium. We studied the sliding friction of a sledge over wet granular media and found that surface tension and viscosity have crucial effect on the dynamic friction coefficient of the wet granular media. Higher the viscosity of the interstitial liquid results in higher dynamic friction coefficient. Furthermore, viscous interstitial liquid shows time dependency behaviour. Viscosity makes the friction coefficient to increase since causes more the energy loss.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_08003.pdf |
| spellingShingle | Aliasgari Mojgan Maleki-Jirsaraei Nahid Rouhani Shahin The effect of liquid viscosity on sliding friction coefficient of wet granular materials EPJ Web of Conferences |
| title | The effect of liquid viscosity on sliding friction coefficient of wet granular materials |
| title_full | The effect of liquid viscosity on sliding friction coefficient of wet granular materials |
| title_fullStr | The effect of liquid viscosity on sliding friction coefficient of wet granular materials |
| title_full_unstemmed | The effect of liquid viscosity on sliding friction coefficient of wet granular materials |
| title_short | The effect of liquid viscosity on sliding friction coefficient of wet granular materials |
| title_sort | effect of liquid viscosity on sliding friction coefficient of wet granular materials |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_08003.pdf |
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