Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures
Capillary-driven action is an important phenomenon which aids the development of high-performance heat transfer devices, such as microscale heat pipes. This study examines the capillary rise dynamics of n-butanol/water mixture in a single vertical capillary tube with different radii (0.4, 0.6, and 0...
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MDPI AG
2021-04-01
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| author | Seungyeop Baek Sungjin Jeong Jaedeok Seo Sanggon Lee Seunghwan Park Jaeyoun Choi Hyomin Jeong Yonmo Sung |
| author_facet | Seungyeop Baek Sungjin Jeong Jaedeok Seo Sanggon Lee Seunghwan Park Jaeyoun Choi Hyomin Jeong Yonmo Sung |
| author_sort | Seungyeop Baek |
| collection | DOAJ |
| description | Capillary-driven action is an important phenomenon which aids the development of high-performance heat transfer devices, such as microscale heat pipes. This study examines the capillary rise dynamics of n-butanol/water mixture in a single vertical capillary tube with different radii (0.4, 0.6, and 0.85 mm). For liquids, distilled water, n-butanol, and their blends with varying concentrations of butanol (0.3, 0.5, and 0.7 wt.%) were used. The results show that the height and velocity of the capillary rise were dependent on the tube radius and liquid surface tension. The larger the radius and the higher the surface tension, the lower was the equilibrium height (<i>h</i><sub>e</sub>) and the velocity of rise. The process of capillary rise was segregated into three characteristic regions: purely inertial, inertial + viscous, and purely viscous regions. The early stages (purely inertial and inertial + viscous) represented the characteristic heights <i>h</i><sub>1</sub> and <i>h</i><sub>2</sub>, which were dominant in the capillary rise process. There were linear correlations between the characteristic heights (<i>h</i><sub>1</sub>, <i>h</i><sub>2</sub>, and <i>h</i><sub>e</sub>), tube radius, and surface tension. Based on these correlations, a linear function was established between each of the three characteristic heights and the consolidated value of tube radius and surface tension (<i>σL</i>/2<i>πr</i><sup>2</sup>). |
| first_indexed | 2024-03-10T12:18:52Z |
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| last_indexed | 2024-03-10T12:18:52Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f7ccfa83f5c2439389e7cb180b7df85b2023-11-21T15:40:38ZengMDPI AGApplied Sciences2076-34172021-04-01118353310.3390/app11083533Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol MixturesSeungyeop Baek0Sungjin Jeong1Jaedeok Seo2Sanggon Lee3Seunghwan Park4Jaeyoun Choi5Hyomin Jeong6Yonmo Sung7Graduate Program, Department of Energy and Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Gyeongsangnam-do, KoreaDepartment of Energy and Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Gyeongsangnam-do, KoreaGraduate Program, Department of Energy and Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Gyeongsangnam-do, KoreaGraduate Program, Department of Energy and Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Gyeongsangnam-do, KoreaHydrogen Technology Planning Team, Hyundai Steel Company, Dangjin-si 31719, Chungcheongnam-do, KoreaEnvironment and Energy Research Team, Hyundai Steel Company, Dangjin-si 31719, Chungcheongnam-do, KoreaDepartment of Energy and Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Gyeongsangnam-do, KoreaDepartment of Energy and Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Gyeongsangnam-do, KoreaCapillary-driven action is an important phenomenon which aids the development of high-performance heat transfer devices, such as microscale heat pipes. This study examines the capillary rise dynamics of n-butanol/water mixture in a single vertical capillary tube with different radii (0.4, 0.6, and 0.85 mm). For liquids, distilled water, n-butanol, and their blends with varying concentrations of butanol (0.3, 0.5, and 0.7 wt.%) were used. The results show that the height and velocity of the capillary rise were dependent on the tube radius and liquid surface tension. The larger the radius and the higher the surface tension, the lower was the equilibrium height (<i>h</i><sub>e</sub>) and the velocity of rise. The process of capillary rise was segregated into three characteristic regions: purely inertial, inertial + viscous, and purely viscous regions. The early stages (purely inertial and inertial + viscous) represented the characteristic heights <i>h</i><sub>1</sub> and <i>h</i><sub>2</sub>, which were dominant in the capillary rise process. There were linear correlations between the characteristic heights (<i>h</i><sub>1</sub>, <i>h</i><sub>2</sub>, and <i>h</i><sub>e</sub>), tube radius, and surface tension. Based on these correlations, a linear function was established between each of the three characteristic heights and the consolidated value of tube radius and surface tension (<i>σL</i>/2<i>πr</i><sup>2</sup>).https://www.mdpi.com/2076-3417/11/8/3533capillary tubesurface tensionbutanol/water mixtureliquid risecapillaritymeniscus |
| spellingShingle | Seungyeop Baek Sungjin Jeong Jaedeok Seo Sanggon Lee Seunghwan Park Jaeyoun Choi Hyomin Jeong Yonmo Sung Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures Applied Sciences capillary tube surface tension butanol/water mixture liquid rise capillarity meniscus |
| title | Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures |
| title_full | Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures |
| title_fullStr | Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures |
| title_full_unstemmed | Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures |
| title_short | Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures |
| title_sort | effects of tube radius and surface tension on capillary rise dynamics of water butanol mixtures |
| topic | capillary tube surface tension butanol/water mixture liquid rise capillarity meniscus |
| url | https://www.mdpi.com/2076-3417/11/8/3533 |
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