VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems
Microscaled devices receive great attention in microreactor systems for producing high renewable energy due to higher surface-to-volume, higher transport rates (heat or/and mass transfer rates), and other advantages over conventional-size reactors. In this paper, the two-phase liquid-liquid flow in...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2013/732682 |
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| author | Xian Wang Hiroyuki Hirano Gongnan Xie Ding Xu |
| author_facet | Xian Wang Hiroyuki Hirano Gongnan Xie Ding Xu |
| author_sort | Xian Wang |
| collection | DOAJ |
| description | Microscaled devices receive great attention in microreactor systems for producing high renewable energy due to higher surface-to-volume, higher transport rates (heat or/and mass transfer rates), and other advantages over conventional-size reactors. In this paper, the two-phase liquid-liquid flow in a microchannel with various Y-shaped junctions has been studied numerically. Two kinds of immiscible liquids were injected into a microchannel from the Y-shaped junctions to generate the segment flow mode. The segment length was studied. The volume of fluid (VOF) method was used to track the liquid-liquid interface and the piecewise-liner interface construction (PLIC) technique was adopted to get a sharp interface. The interfacial tension was simulated with continuum surface force (CSF) model and the wall adhesion boundary condition was taken into consideration. The simulated flow pattern presents consistence with our experimental one. The numerical results show that a segmented flow mode appears in the main channel. Under the same inlet velocities of two liquids, the segment lengths of the two liquids are the same and depend on the inclined angles of two lateral channels. The effect of inlet velocity is studied in a typical T-shaped microchannel. It is found that the ratio between the lengths of two liquids is almost equal to the ratio between their inlet velocities. |
| format | Article |
| id | doaj-art-12dc8dcfcd7843c1bf69c74e12bd5b38 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-12dc8dcfcd7843c1bf69c74e12bd5b382025-02-03T01:10:03ZengWileyAdvances in High Energy Physics1687-73571687-73652013-01-01201310.1155/2013/732682732682VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor SystemsXian Wang0Hiroyuki Hirano1Gongnan Xie2Ding Xu3State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, ChinaDepartment of Applied Chemistry, Okayama University of Science, Okayama 700-0005, JapanEngineering Simulation and Aerospace Computing (ESAC), School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, ChinaMicroscaled devices receive great attention in microreactor systems for producing high renewable energy due to higher surface-to-volume, higher transport rates (heat or/and mass transfer rates), and other advantages over conventional-size reactors. In this paper, the two-phase liquid-liquid flow in a microchannel with various Y-shaped junctions has been studied numerically. Two kinds of immiscible liquids were injected into a microchannel from the Y-shaped junctions to generate the segment flow mode. The segment length was studied. The volume of fluid (VOF) method was used to track the liquid-liquid interface and the piecewise-liner interface construction (PLIC) technique was adopted to get a sharp interface. The interfacial tension was simulated with continuum surface force (CSF) model and the wall adhesion boundary condition was taken into consideration. The simulated flow pattern presents consistence with our experimental one. The numerical results show that a segmented flow mode appears in the main channel. Under the same inlet velocities of two liquids, the segment lengths of the two liquids are the same and depend on the inclined angles of two lateral channels. The effect of inlet velocity is studied in a typical T-shaped microchannel. It is found that the ratio between the lengths of two liquids is almost equal to the ratio between their inlet velocities.http://dx.doi.org/10.1155/2013/732682 |
| spellingShingle | Xian Wang Hiroyuki Hirano Gongnan Xie Ding Xu VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems Advances in High Energy Physics |
| title | VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems |
| title_full | VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems |
| title_fullStr | VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems |
| title_full_unstemmed | VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems |
| title_short | VOF Modeling and Analysis of the Segmented Flow in Y-Shaped Microchannels for Microreactor Systems |
| title_sort | vof modeling and analysis of the segmented flow in y shaped microchannels for microreactor systems |
| url | http://dx.doi.org/10.1155/2013/732682 |
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