Surfactant instabilities on thin films
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2014
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| Online Access: | http://hdl.handle.net/1721.1/88902 |
| _version_ | 1826209948963438592 |
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| author | Aessopos, Angelica |
| author2 | Anette Hosoi. |
| author_facet | Anette Hosoi. Aessopos, Angelica |
| author_sort | Aessopos, Angelica |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005. |
| first_indexed | 2024-09-23T14:36:51Z |
| format | Thesis |
| id | mit-1721.1/88902 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T14:36:51Z |
| publishDate | 2014 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/889022019-04-11T14:36:27Z Surfactant instabilities on thin films Aessopos, Angelica Anette Hosoi. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005. "June 2005." Includes bibliographical references (pages 89-92). The deposition of a surfactant drop over a thin liquid film may be accompanied by a fingering instability. In this work, we present experimental results which identify the critical parameters that govern the shape and extend of the fingering phenomena. It was found that the normalized wavelength, [lambda]/t, scales with Marangoni number, Ma=[Delta][gamma]t/[mu]D, to the -1 exponent for any Marangoni higher than 4.3 · 10⁷. On the other end, for Marangoni < 4.3 · 10⁷ the normalized wavelength scales with Ma to the -0.4 but becomes in addition a funcion of the Prandtl number, Pr=[upsilon]/D, which demonstrates the critical significance of bulk diffusion on the spreding behavior. Finally, we present a numerical implementation of a mathematical model which is capable of reproducing the experimentally observed trends. by Angelica Aessopos. S.M. 2014-08-19T17:36:32Z 2014-08-19T17:36:32Z 2005 Thesis http://hdl.handle.net/1721.1/88902 61516542 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 92 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Aessopos, Angelica Surfactant instabilities on thin films |
| title | Surfactant instabilities on thin films |
| title_full | Surfactant instabilities on thin films |
| title_fullStr | Surfactant instabilities on thin films |
| title_full_unstemmed | Surfactant instabilities on thin films |
| title_short | Surfactant instabilities on thin films |
| title_sort | surfactant instabilities on thin films |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/88902 |
| work_keys_str_mv | AT aessoposangelica surfactantinstabilitiesonthinfilms |