Revisiting the NASA surface tension driven convection experiments
Abstract Marangoni effect plays an important role in many industrial applications where a surface tension gradient induces fluid flow, e.g., the cleaning process of silicon wafers and the welding process of melted metal. Surface tension gradient can also be caused by a spatially varying temperature...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-02-01
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| Series: | npj Microgravity |
| Online Access: | https://doi.org/10.1038/s41526-022-00189-5 |
| _version_ | 1797643087256748032 |
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| author | Yohan Sequeira Abhradeep Maitra Anupam Pandey Sunghwan Jung |
| author_facet | Yohan Sequeira Abhradeep Maitra Anupam Pandey Sunghwan Jung |
| author_sort | Yohan Sequeira |
| collection | DOAJ |
| description | Abstract Marangoni effect plays an important role in many industrial applications where a surface tension gradient induces fluid flow, e.g., the cleaning process of silicon wafers and the welding process of melted metal. Surface tension gradient can also be caused by a spatially varying temperature field which, in the absence of gravity, is solely responsible for driving a large scale convective flow. NASA STDC-1 (Surface Tension Driven Convection) experiments performed on USML-1 Spacelab missions in 1992 were designed to study thermocapillary flows in microgravity. Since then these experiments have become a benchmark in thermocapillary studies in the absence of gravity. However, interpretation of results of the original STDC-1 experiments remains challenging due to the low resolution of the available data. Analysis of the velocity field in those experiments was limited to a single tracking method without systematic and comparative studies. In the present study, we utilize multiple state-of-the-art Particle Image Velocimetry and Particle Tracking Velocimetry tools to extract the flow field from NASA STDCE-1 videos and compare the experimental data to the numerical results from COMSOL Multiphysics® v5.6. Finally, we discuss how our findings of temperature-driven Marangoni flow in the microgravity setting can improve future experiments and analysis. |
| first_indexed | 2024-03-11T14:09:35Z |
| format | Article |
| id | doaj.art-d550f0306ddc4342aee024f74fe25419 |
| institution | Directory Open Access Journal |
| issn | 2373-8065 |
| language | English |
| last_indexed | 2024-03-11T14:09:35Z |
| publishDate | 2022-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Microgravity |
| spelling | doaj.art-d550f0306ddc4342aee024f74fe254192023-11-02T00:38:15ZengNature Portfolionpj Microgravity2373-80652022-02-018111010.1038/s41526-022-00189-5Revisiting the NASA surface tension driven convection experimentsYohan Sequeira0Abhradeep Maitra1Anupam Pandey2Sunghwan Jung3Department of Biological and Environmental Engineering, Cornell UniversityDepartment of Mechanical and Aerospace Engineering, Cornell UniversityDepartment of Biological and Environmental Engineering, Cornell UniversityDepartment of Biological and Environmental Engineering, Cornell UniversityAbstract Marangoni effect plays an important role in many industrial applications where a surface tension gradient induces fluid flow, e.g., the cleaning process of silicon wafers and the welding process of melted metal. Surface tension gradient can also be caused by a spatially varying temperature field which, in the absence of gravity, is solely responsible for driving a large scale convective flow. NASA STDC-1 (Surface Tension Driven Convection) experiments performed on USML-1 Spacelab missions in 1992 were designed to study thermocapillary flows in microgravity. Since then these experiments have become a benchmark in thermocapillary studies in the absence of gravity. However, interpretation of results of the original STDC-1 experiments remains challenging due to the low resolution of the available data. Analysis of the velocity field in those experiments was limited to a single tracking method without systematic and comparative studies. In the present study, we utilize multiple state-of-the-art Particle Image Velocimetry and Particle Tracking Velocimetry tools to extract the flow field from NASA STDCE-1 videos and compare the experimental data to the numerical results from COMSOL Multiphysics® v5.6. Finally, we discuss how our findings of temperature-driven Marangoni flow in the microgravity setting can improve future experiments and analysis.https://doi.org/10.1038/s41526-022-00189-5 |
| spellingShingle | Yohan Sequeira Abhradeep Maitra Anupam Pandey Sunghwan Jung Revisiting the NASA surface tension driven convection experiments npj Microgravity |
| title | Revisiting the NASA surface tension driven convection experiments |
| title_full | Revisiting the NASA surface tension driven convection experiments |
| title_fullStr | Revisiting the NASA surface tension driven convection experiments |
| title_full_unstemmed | Revisiting the NASA surface tension driven convection experiments |
| title_short | Revisiting the NASA surface tension driven convection experiments |
| title_sort | revisiting the nasa surface tension driven convection experiments |
| url | https://doi.org/10.1038/s41526-022-00189-5 |
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