ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ
Recently, the study of the mechanisms of occurrence and propagation of detonation processes has been of particular interest. The aim of this work is to theoretically analyze the interaction...
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| Date: | 2025 |
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| Language: | Ukrainian |
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Institute of Engineering Thermophysics of NAS of Ukraine
2025
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| Online Access: | https://ihe.nas.gov.ua/index.php/journal/article/view/612 |
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| Journal Title: | Thermophysics and Thermal Power Engineering |
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oai:ojs2.ihenasgovua.s43.yourdomain.com.ua:article-6122025-04-22T05:21:49Z EFFECT OF FLOW TURBULENCE ON DETONATION PROCESSES ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ Avramenko, A.A. Tyrinov, A.I. Kovetska, Yu.Yu. Anastasiev, D.V. Recently, the study of the mechanisms of occurrence and propagation of detonation processes has been of particular interest. The aim of this work is to theoretically analyze the interaction of a turbulent gas flow with a normal detonation wave. For the first time, a simplified K-ε model was applied to analyze turbulence. A modified Hugoniot detonation equation is derived for detonation, which takes into account the thermal effect and the level of flow turbulence. Thus, for the first time, the relationship between thermodynamic and gasdynamic processes in a detonation wave was demonstrated. At zero turbulence, combustion products flow from the detonation front at a critical (sonic) velocity. As the degree of turbulence increases, the velocity of detonation products also increases. It is evident that the energy of turbulent fluctuations contributes to an increase in the kinetic energy of the averaged flow behind the detonation wave. It has been shown that the thermal effect weakens the influence of turbulence. A dependency has been established that allows evaluating the effect of heat release and turbulence on the velocity ahead of the shock wave. It has been demonstrated that both the thermal effect and turbulence lead to an acceleration of the flow ahead of the shock wave. It is also shown that when the flow passes through a shock wave, the value of turbulent viscosity is preserved. В роботі представлено результати дослідження впливу ступеню турбулентності при переході потоку через нормальну детонаційну ударну хвилю. Виведено модифіковане рівняння Гюґоніо, яке враховує тепловий ефект і рівень турбулентності потоку. Показано вплив турбулентности на швидкість продуктів детонації. Визначено залежність, яка дозволяє оцінити вплив тепловиділення і турбулентності на швидкість перед ударною хвилею. Institute of Engineering Thermophysics of NAS of Ukraine 2025-03-31 Article Article application/pdf https://ihe.nas.gov.ua/index.php/journal/article/view/612 Thermophysics and Thermal Power Engineering; Vol 47 No 1 (2025): Thermophysics and Thermal Power Engineering; 19-29 Теплофизика и Теплоэнергетика; Vol 47 No 1 (2025): Thermophysics and Thermal Power Engineering; 19-29 Теплофізика та Теплоенергетика; Vol 47 No 1 (2025): Thermophysics and Thermal Power Engineering; 19-29 2663-7235 uk https://ihe.nas.gov.ua/index.php/journal/article/view/612/533 https://creativecommons.org/licenses/by/4.0/deed.ru |
| institution |
Thermophysics and Thermal Power Engineering |
| baseUrl_str |
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| datestamp_date |
2025-04-22T05:21:49Z |
| collection |
OJS |
| language |
Ukrainian |
| format |
Article |
| author |
Avramenko, A.A. Tyrinov, A.I. Kovetska, Yu.Yu. Anastasiev, D.V. |
| spellingShingle |
Avramenko, A.A. Tyrinov, A.I. Kovetska, Yu.Yu. Anastasiev, D.V. ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ |
| author_facet |
Avramenko, A.A. Tyrinov, A.I. Kovetska, Yu.Yu. Anastasiev, D.V. |
| author_sort |
Avramenko, A.A. |
| title |
ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ |
| title_short |
ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ |
| title_full |
ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ |
| title_fullStr |
ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ |
| title_full_unstemmed |
ВПЛИВ ТУРБУЛЕНТНОСТІ ПОТОКУ НА ПРОЦЕСИ ДЕТОНАЦІЇ |
| title_sort |
вплив турбулентності потоку на процеси детонації |
| title_alt |
EFFECT OF FLOW TURBULENCE ON DETONATION PROCESSES |
| description |
Recently, the study of the mechanisms of occurrence and propagation of detonation processes has been of particular interest. The aim of this work is to theoretically analyze the interaction of a turbulent gas flow with a normal detonation wave. For the first time, a simplified K-ε model was applied to analyze turbulence.
A modified Hugoniot detonation equation is derived for detonation, which takes into account the thermal effect and the level of flow turbulence. Thus, for the first time, the relationship between thermodynamic and gasdynamic processes in a detonation wave was demonstrated. At zero turbulence, combustion products flow from the detonation front at a critical (sonic) velocity. As the degree of turbulence increases, the velocity of detonation products also increases. It is evident that the energy of turbulent fluctuations contributes to an increase in the kinetic energy of the averaged flow behind the detonation wave. It has been shown that the thermal effect weakens the influence of turbulence.
A dependency has been established that allows evaluating the effect of heat release and turbulence on the velocity ahead of the shock wave. It has been demonstrated that both the thermal effect and turbulence lead to an acceleration of the flow ahead of the shock wave. It is also shown that when the flow passes through a shock wave, the value of turbulent viscosity is preserved. |
| publisher |
Institute of Engineering Thermophysics of NAS of Ukraine |
| publishDate |
2025 |
| url |
https://ihe.nas.gov.ua/index.php/journal/article/view/612 |
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2025-12-17T13:56:12Z |
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2025-12-17T13:56:12Z |
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