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Analytical study in the mechanism of flame movement in horizontal tubes. II. Flame acceleration in smooth open tubesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 14 сентября 2013 г.
- Автор: Kazakov K.A.
- Журнал: Physics of Fluids
- Том: 25
- Год издания: 2013
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 082107
- DOI: 10.1063/1.4817944
- Аннотация: The problem of spontaneous acceleration of premixed flames propagating in open horizontal tubes with smooth walls is revisited. It is proved that in long tubes, this process can be considered quasi-steady, and an equation for the flame front position is derived using the on-shell description. Numerical solutions of this equation are found which show that as in the case of uniform flame movement, there are two essentially different regimes of flame propagation. In the type I regime, the flame speed and its acceleration are comparatively low, whereas the type II regime is characterized by significant flame acceleration that rapidly increases as the flame travels along the tube. A detailed comparison of the obtained results with the experimental data on flame acceleration in methane-air mixtures is given. In particular, it is confirmed that flames propagating in near-stoichiometric mixtures and mixtures near the limits of inflammability belong to the types II and I, respectively, whereas flames in transient mixtures undergo transitions between the two regimes during their travel.
- Добавил в систему: Казаков Кирилл Александрович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | PhysicsOfFluids2013.pdf | 897,4 КБ | 18 августа 2013 [Kirill_Kazakov] |