Phase separation of binary fluids with dynamic temperature
Phase separation of binary fluids quenched by contact with cold external walls is considered. Navier-Stokes, convection-diffusion, and energy equations are solved by lattice Boltzmann method coupled with finite-difference schemes. At high viscosity, different morphologies are observed by varying the...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/100070 http://hdl.handle.net/10220/25672 |
| _version_ | 1826126671474851840 |
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| author | Gonnella, Giuseppe Lamura, Antonio Piscitelli, Antonio Tiribocchi, Adriano |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Gonnella, Giuseppe Lamura, Antonio Piscitelli, Antonio Tiribocchi, Adriano |
| author_sort | Gonnella, Giuseppe |
| collection | NTU |
| description | Phase separation of binary fluids quenched by contact with cold external walls is considered. Navier-Stokes, convection-diffusion, and energy equations are solved by lattice Boltzmann method coupled with finite-difference schemes. At high viscosity, different morphologies are observed by varying the thermal diffusivity. In the range of thermal diffusivities with domains growing parallel to the walls, temperature and phase separation fronts propagate towards the inner of the system with power-law behavior. At low viscosity hydrodynamics favors rounded shapes, and complex patterns with different lengthscales appear. Off-symmetrical systems behave similarly but with more ordered configurations. |
| first_indexed | 2024-10-01T06:56:29Z |
| format | Journal Article |
| id | ntu-10356/100070 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:56:29Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1000702023-02-28T19:31:23Z Phase separation of binary fluids with dynamic temperature Gonnella, Giuseppe Lamura, Antonio Piscitelli, Antonio Tiribocchi, Adriano School of Physical and Mathematical Sciences DRNTU::Science::Physics::Heat and thermodynamics Phase separation of binary fluids quenched by contact with cold external walls is considered. Navier-Stokes, convection-diffusion, and energy equations are solved by lattice Boltzmann method coupled with finite-difference schemes. At high viscosity, different morphologies are observed by varying the thermal diffusivity. In the range of thermal diffusivities with domains growing parallel to the walls, temperature and phase separation fronts propagate towards the inner of the system with power-law behavior. At low viscosity hydrodynamics favors rounded shapes, and complex patterns with different lengthscales appear. Off-symmetrical systems behave similarly but with more ordered configurations. Published version 2015-05-26T00:51:15Z 2019-12-06T20:16:08Z 2015-05-26T00:51:15Z 2019-12-06T20:16:08Z 2010 2010 Journal Article Gonnella, G., Lamura, A., Piscitelli, A., & Tiribocchi, A. (2010). Phase separation of binary fluids with dynamic temperature. Physical review E, 82, 046302-. https://hdl.handle.net/10356/100070 http://hdl.handle.net/10220/25672 186351 en Physical review E © 2010 The American Physical Society. This paper was published in Physical Review E and is made available as an electronic reprint (preprint) with permission of The American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevE.82.046302]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 25 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Heat and thermodynamics Gonnella, Giuseppe Lamura, Antonio Piscitelli, Antonio Tiribocchi, Adriano Phase separation of binary fluids with dynamic temperature |
| title | Phase separation of binary fluids with dynamic temperature |
| title_full | Phase separation of binary fluids with dynamic temperature |
| title_fullStr | Phase separation of binary fluids with dynamic temperature |
| title_full_unstemmed | Phase separation of binary fluids with dynamic temperature |
| title_short | Phase separation of binary fluids with dynamic temperature |
| title_sort | phase separation of binary fluids with dynamic temperature |
| topic | DRNTU::Science::Physics::Heat and thermodynamics |
| url | https://hdl.handle.net/10356/100070 http://hdl.handle.net/10220/25672 |
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