Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible Gas
Liquid atomization is widely used in industry, agriculture and other fields. During the atomization process, the liquid first forms a liquid film, and the liquid film becomes unstable in the gas-liquid boundary layer, resulting in the liquid film being broken. Therefore, the instability of the liqui...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases
2023-09-01
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| Series: | 气体物理 |
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| Online Access: | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1032 |
| _version_ | 1797632599194075136 |
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| author | Run-ze DUAN Xiao-lei ZHANG Heng ZHANG Lian-sheng LIU Hai-xia WANG |
| author_facet | Run-ze DUAN Xiao-lei ZHANG Heng ZHANG Lian-sheng LIU Hai-xia WANG |
| author_sort | Run-ze DUAN |
| collection | DOAJ |
| description | Liquid atomization is widely used in industry, agriculture and other fields. During the atomization process, the liquid first forms a liquid film, and the liquid film becomes unstable in the gas-liquid boundary layer, resulting in the liquid film being broken. Therefore, the instability of the liquid film plays a very important role in the liquid atomization, and it is necessary to study the instability of the liquid film. In this paper, the instability of viscous planar liquid film in compressible gas was studied by numerical calculation method. Firstly, the velocity distributions of viscous planar liquid film and gas were derived, based on which the instability of viscous planar liquid film was investigated by spectral methods. It is found that in the sinuous and varicose modes, applying an electric field will accelerate the breakup of the plane liquid film. The sinuous mode is more unstable than the varicose mode, indicating that the sinuous mode plays a leading role in the instability of the plane liquid film. Increases of gas Mach number, electrical Euler number, gas Reynolds number, Weber number and momentum flux ratio accelerate the breakup of the liquid film. With the increase of the thickness ratio of gas boundary layer to liquid film and the liquid Reynolds number, the growth rate of the disturbance wave decreases, and the liquid film becomes more stable. |
| first_indexed | 2024-03-11T11:39:10Z |
| format | Article |
| id | doaj.art-018cd301f01c40f28d6674343ba23c43 |
| institution | Directory Open Access Journal |
| issn | 2096-1642 |
| language | zho |
| last_indexed | 2024-03-11T11:39:10Z |
| publishDate | 2023-09-01 |
| publisher | China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases |
| record_format | Article |
| series | 气体物理 |
| spelling | doaj.art-018cd301f01c40f28d6674343ba23c432023-11-10T06:27:32ZzhoChina Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases气体物理2096-16422023-09-0185708210.19527/j.cnki.2096-1642.1032qtwl-8-5-70Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible GasRun-ze DUAN0Xiao-lei ZHANG1Heng ZHANG2Lian-sheng LIU3Hai-xia WANG4School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, ChinaHebei Chengde Heating Group Co., Ltd, Chengde 067000, ChinaLiquid atomization is widely used in industry, agriculture and other fields. During the atomization process, the liquid first forms a liquid film, and the liquid film becomes unstable in the gas-liquid boundary layer, resulting in the liquid film being broken. Therefore, the instability of the liquid film plays a very important role in the liquid atomization, and it is necessary to study the instability of the liquid film. In this paper, the instability of viscous planar liquid film in compressible gas was studied by numerical calculation method. Firstly, the velocity distributions of viscous planar liquid film and gas were derived, based on which the instability of viscous planar liquid film was investigated by spectral methods. It is found that in the sinuous and varicose modes, applying an electric field will accelerate the breakup of the plane liquid film. The sinuous mode is more unstable than the varicose mode, indicating that the sinuous mode plays a leading role in the instability of the plane liquid film. Increases of gas Mach number, electrical Euler number, gas Reynolds number, Weber number and momentum flux ratio accelerate the breakup of the liquid film. With the increase of the thickness ratio of gas boundary layer to liquid film and the liquid Reynolds number, the growth rate of the disturbance wave decreases, and the liquid film becomes more stable.http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1032planar liquid filmelectrified fluidcompressible gasinstabilityspectral method |
| spellingShingle | Run-ze DUAN Xiao-lei ZHANG Heng ZHANG Lian-sheng LIU Hai-xia WANG Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible Gas 气体物理 planar liquid film electrified fluid compressible gas instability spectral method |
| title | Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible Gas |
| title_full | Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible Gas |
| title_fullStr | Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible Gas |
| title_full_unstemmed | Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible Gas |
| title_short | Instability Analysis of Electrified Newtonian Fluid Planar Film in Compressible Gas |
| title_sort | instability analysis of electrified newtonian fluid planar film in compressible gas |
| topic | planar liquid film electrified fluid compressible gas instability spectral method |
| url | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1032 |
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