ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ
A mathematical model of nonideal gas flow in a boundary layer behind a shock wave is presented, taking slip effects into account. The model takes into account the effect of shock wave intensity (U¥/Us), physical (Pr) and thermodynamic (Waa, Wab) gas properties, slip effects (Kn) and surface temperat...
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| Date: | 2023 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | Ukrainian |
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Institute of Engineering Thermophysics of NAS of Ukraine
2023
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| Online Access: | https://ihe.nas.gov.ua/index.php/journal/article/view/553 |
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| Journal Title: | Thermophysics and Thermal Power Engineering |
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Thermophysics and Thermal Power Engineering| _version_ | 1856543854725955584 |
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| author | Avramenko, A.A. Kovetskaya, M.M. Kovetska, Y.Y. Skitsko, O.I. |
| author_facet | Avramenko, A.A. Kovetskaya, M.M. Kovetska, Y.Y. Skitsko, O.I. |
| author_sort | Avramenko, A.A. |
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| collection | OJS |
| datestamp_date | 2024-02-13T11:20:15Z |
| description | A mathematical model of nonideal gas flow in a boundary layer behind a shock wave is presented, taking slip effects into account. The model takes into account the effect of shock wave intensity (U¥/Us), physical (Pr) and thermodynamic (Waa, Wab) gas properties, slip effects (Kn) and surface temperature (T0/Tw). The results of calculations of the heat transfer coefficients (Nusselt number) depending on the Knudsen number and van der Waals parameters are presented.
It is shown that slip effects lead to a decrease in the intensity of transfer processes on the wall due to the weakening of the interaction between the flow and the surface. The slip effect weakens with increasing value of the Waa parameter, which is explained by the additional pressure. This eliminates the effect of slippage, enhancing the interaction between the flow and the surface. On the contrary, an increase in the value of the Wab parameter enhances the effect of slippage due to additional volume. |
| first_indexed | 2025-12-17T13:56:00Z |
| format | Article |
| id | oai:ojs2.ihenasgovua.s43.yourdomain.com.ua:article-553 |
| institution | Thermophysics and Thermal Power Engineering |
| language | Ukrainian |
| last_indexed | 2025-12-17T13:56:00Z |
| publishDate | 2023 |
| publisher | Institute of Engineering Thermophysics of NAS of Ukraine |
| record_format | ojs |
| spelling | oai:ojs2.ihenasgovua.s43.yourdomain.com.ua:article-5532024-02-13T11:20:15Z HEAT TRANSFER IN A REAL GAS FLOW IN THE BOUNDARY LAYER BEYOND A SHOCK WAVE ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ Avramenko, A.A. Kovetskaya, M.M. Kovetska, Y.Y. Skitsko, O.I. A mathematical model of nonideal gas flow in a boundary layer behind a shock wave is presented, taking slip effects into account. The model takes into account the effect of shock wave intensity (U¥/Us), physical (Pr) and thermodynamic (Waa, Wab) gas properties, slip effects (Kn) and surface temperature (T0/Tw). The results of calculations of the heat transfer coefficients (Nusselt number) depending on the Knudsen number and van der Waals parameters are presented. It is shown that slip effects lead to a decrease in the intensity of transfer processes on the wall due to the weakening of the interaction between the flow and the surface. The slip effect weakens with increasing value of the Waa parameter, which is explained by the additional pressure. This eliminates the effect of slippage, enhancing the interaction between the flow and the surface. On the contrary, an increase in the value of the Wab parameter enhances the effect of slippage due to additional volume. Розглянуто плин реального газу в прикордонному шарі за ударною хвилею з урахуванням ефекту прослизання на стінці. Показано вплив термодинамічних властивостей газу та ефекту прослизання на зміну коефіцієнта тепловіддачі. Institute of Engineering Thermophysics of NAS of Ukraine 2023-11-23 Article Article application/pdf https://ihe.nas.gov.ua/index.php/journal/article/view/553 10.31472/ttpe.4.2023.2 Thermophysics and Thermal Power Engineering; Vol 45 No 4 (2023): Thermophysics and Thermal Power Engineering; 16-25 Теплофизика и Теплоэнергетика; Vol 45 No 4 (2023): Thermophysics and Thermal Power Engineering; 16-25 Теплофізика та Теплоенергетика; Vol 45 No 4 (2023): Thermophysics and Thermal Power Engineering; 16-25 2663-7235 uk https://ihe.nas.gov.ua/index.php/journal/article/view/553/476 https://creativecommons.org/licenses/by/4.0 |
| spellingShingle | Avramenko, A.A. Kovetskaya, M.M. Kovetska, Y.Y. Skitsko, O.I. ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ |
| title | ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ |
| title_alt | HEAT TRANSFER IN A REAL GAS FLOW IN THE BOUNDARY LAYER BEYOND A SHOCK WAVE |
| title_full | ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ |
| title_fullStr | ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ |
| title_full_unstemmed | ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ |
| title_short | ТЕПЛООБМІН ПРИ ТЕЧІЇ РЕАЛЬНОГО ГАЗУ У ПРИКОРДОННОМУ ШАРІ ЗА УДАРНОЮ ХВИЛЕЮ |
| title_sort | теплообмін при течії реального газу у прикордонному шарі за ударною хвилею |
| url | https://ihe.nas.gov.ua/index.php/journal/article/view/553 |
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