Spreading profile of evaporative liquid drops in thin porous layer
Spreading of evaporative liquid drops in a thin porous layer has been studied. The entire spreading process can be divided into three distinct phases according to the change of the wetted porous region size. The first phase is characterized by the expansion of the wetted porous region and shrinking...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2012
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| Online Access: | http://eprints.um.edu.my/4645/1/Chong-2012-Spreading_profile_of.pdf |
| _version_ | 1796945161873260544 |
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| author | Chong, W.Y. Lim, K.S. Lim, W.H. Harun, Sulaiman Wadi Adikan, Faisal Rafiq Mahamd Ahmad, Harith |
| author_facet | Chong, W.Y. Lim, K.S. Lim, W.H. Harun, Sulaiman Wadi Adikan, Faisal Rafiq Mahamd Ahmad, Harith |
| author_sort | Chong, W.Y. |
| collection | UM |
| description | Spreading of evaporative liquid drops in a thin porous layer has been studied. The entire spreading process can be divided into three distinct phases according to the change of the wetted porous region size. The first phase is characterized by the expansion of the wetted porous region and shrinking of the liquid drop. Contact line pinning is observed in the wetted porous region in the second phase even with the liquid drop totally absorbed into the porous layer. The third phase sees the shrinkage of the wetted porous region until it is not observable. Based on these observations, a model is devised to simulate the spreading of a liquid drop under the studied conditions. Partial differential equations are used to describe the relation between liquid drop volume and other important parameters of a fluid flow, including maximum wetted region diameter achieved, time taken to reach each spreading process phase, and evaporation rate. Calculated results are in good agreement with the experimental data. |
| first_indexed | 2024-03-06T05:12:33Z |
| format | Article |
| id | um.eprints-4645 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:12:33Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | um.eprints-46452018-10-09T06:33:48Z http://eprints.um.edu.my/4645/ Spreading profile of evaporative liquid drops in thin porous layer Chong, W.Y. Lim, K.S. Lim, W.H. Harun, Sulaiman Wadi Adikan, Faisal Rafiq Mahamd Ahmad, Harith TK Electrical engineering. Electronics Nuclear engineering Spreading of evaporative liquid drops in a thin porous layer has been studied. The entire spreading process can be divided into three distinct phases according to the change of the wetted porous region size. The first phase is characterized by the expansion of the wetted porous region and shrinking of the liquid drop. Contact line pinning is observed in the wetted porous region in the second phase even with the liquid drop totally absorbed into the porous layer. The third phase sees the shrinkage of the wetted porous region until it is not observable. Based on these observations, a model is devised to simulate the spreading of a liquid drop under the studied conditions. Partial differential equations are used to describe the relation between liquid drop volume and other important parameters of a fluid flow, including maximum wetted region diameter achieved, time taken to reach each spreading process phase, and evaporation rate. Calculated results are in good agreement with the experimental data. 2012 Article PeerReviewed application/pdf en http://eprints.um.edu.my/4645/1/Chong-2012-Spreading_profile_of.pdf Chong, W.Y. and Lim, K.S. and Lim, W.H. and Harun, Sulaiman Wadi and Adikan, Faisal Rafiq Mahamd and Ahmad, Harith (2012) Spreading profile of evaporative liquid drops in thin porous layer. Physical Review E, 85 (1). 016314. ISSN 1539-3755, https://doi.org/10.1103/PhysRevE.85.016314 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Chong, W.Y. Lim, K.S. Lim, W.H. Harun, Sulaiman Wadi Adikan, Faisal Rafiq Mahamd Ahmad, Harith Spreading profile of evaporative liquid drops in thin porous layer |
| title | Spreading profile of evaporative liquid drops in thin porous layer |
| title_full | Spreading profile of evaporative liquid drops in thin porous layer |
| title_fullStr | Spreading profile of evaporative liquid drops in thin porous layer |
| title_full_unstemmed | Spreading profile of evaporative liquid drops in thin porous layer |
| title_short | Spreading profile of evaporative liquid drops in thin porous layer |
| title_sort | spreading profile of evaporative liquid drops in thin porous layer |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.um.edu.my/4645/1/Chong-2012-Spreading_profile_of.pdf |
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