INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMS
Experimental study of the occurrence of convective flows in a three-component gas mixture He + R12 – Ar at various pressures and concentrations of the miscible components has been carried out. It is shown that the intensity of convective flows increases with increasing pressure. It is noted that in...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Al-Farabi Kazakh National University
2022-06-01
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| Series: | Physical Sciences and Technology |
| Online Access: | http://phst/index.php/journal/article/view/280 |
| _version_ | 1797645285533417472 |
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| author | Aiym Zhussanbayeva Vladimir Kossov Olga Fedorenko Zhaneli Magzhan |
| author_facet | Aiym Zhussanbayeva Vladimir Kossov Olga Fedorenko Zhaneli Magzhan |
| author_sort | Aiym Zhussanbayeva |
| collection | DOAJ |
| description |
Experimental study of the occurrence of convective flows in a three-component gas mixture He + R12 – Ar at various pressures and concentrations of the miscible components has been carried out. It is shown that the intensity of convective flows increases with increasing pressure. It is noted that in the system under consideration, the occurrence of convective flows is possible when the content of Freon-12 in the mixture is more than 0.1 mole fraction. A numerical study of the instability of mechanical equilibrium in the system He + R12 – Ar with significantly different diffusion coefficients of gas mixture components has been carried out by means of the splitting scheme in terms of physical parameters. The presented mathematical model makes it possible to describe the process of formation of a convective structure for various compositions of mixture. The onset of instability is accompanied by the appearance of nonlinear isoconcentration lines. Within the numerical framework, the onset times of various mixing regimes are determined.
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| first_indexed | 2024-03-11T14:44:10Z |
| format | Article |
| id | doaj.art-41a165fde8744ed5ac44d8d865444da7 |
| institution | Directory Open Access Journal |
| issn | 2409-6121 |
| language | English |
| last_indexed | 2024-03-11T14:44:10Z |
| publishDate | 2022-06-01 |
| publisher | Al-Farabi Kazakh National University |
| record_format | Article |
| series | Physical Sciences and Technology |
| spelling | doaj.art-41a165fde8744ed5ac44d8d865444da72023-10-30T13:10:40ZengAl-Farabi Kazakh National UniversityPhysical Sciences and Technology2409-61212022-06-0191INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMSAiym Zhussanbayeva0Vladimir Kossov1Olga Fedorenko2Zhaneli Magzhan3Abay Kazakh National Pedagogical UniversityAbay Kazakh National Pedagogical UniversityAbay Kazakh National Pedagogical UniversityAbay Kazakh National Pedagogical University Experimental study of the occurrence of convective flows in a three-component gas mixture He + R12 – Ar at various pressures and concentrations of the miscible components has been carried out. It is shown that the intensity of convective flows increases with increasing pressure. It is noted that in the system under consideration, the occurrence of convective flows is possible when the content of Freon-12 in the mixture is more than 0.1 mole fraction. A numerical study of the instability of mechanical equilibrium in the system He + R12 – Ar with significantly different diffusion coefficients of gas mixture components has been carried out by means of the splitting scheme in terms of physical parameters. The presented mathematical model makes it possible to describe the process of formation of a convective structure for various compositions of mixture. The onset of instability is accompanied by the appearance of nonlinear isoconcentration lines. Within the numerical framework, the onset times of various mixing regimes are determined. http://phst/index.php/journal/article/view/280 |
| spellingShingle | Aiym Zhussanbayeva Vladimir Kossov Olga Fedorenko Zhaneli Magzhan INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMS Physical Sciences and Technology |
| title | INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMS |
| title_full | INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMS |
| title_fullStr | INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMS |
| title_full_unstemmed | INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMS |
| title_short | INSTABILITY OF MECHANICAL EQUILIBRIUM AND SOME FEATURES OF CONCENTRATION CONVECTION IN ISOTHERMAL TERNARY GASEOUS SYSTEMS |
| title_sort | instability of mechanical equilibrium and some features of concentration convection in isothermal ternary gaseous systems |
| url | http://phst/index.php/journal/article/view/280 |
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