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Title: A Phenomenological Model of a Reacting Fuel Jet Tilted in Crossflow Employing Air Entrainment // Proceedings of the Ninth International Seminar on Fire and Explosion Hazards. Vol. 2: 21-26 April 2019, Saint Petersburg, Russia
Creators: Wang K.; Fang J.; Wang J. W.; Zheng S. M.; Shah H. R.; Guan J. F.; Lin S. B.; Zhang Y. M.
Organization: University of Science and Technology of China; Tsinghua University
Imprint: Saint Petersburg, 2019
Collection: Общая коллекция
Document type: Article, report
File type: PDF
Language: English
DOI: 10.18720/SPBPU/2/k19-93
Rights: Свободный доступ из сети Интернет (чтение, печать, копирование)

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Jet flame combustion in cross-flow is meaningful to promote reaction in many industrial combustion devices. Previous research about the tilt angle has limited predictive capability in a large range of the jetto- crossflow momentum flux ratio (RM). In this work, a new tilt angle model was provided by employing the air entrainment. The study showed that: the air entrainment ratio, defined as the mass flow rate ratio of the hot gas in the whole flame region to stoichiometric gases, was neversely proportional to the jet flame Froude number (Fr). Additionally, two regimes of the tilt angles were identified as 1 < Fr < 103, 0.1 < RM < 100 for medium turbulent jet flames, and 103 < Fr < 106, 100 < RM < 3000 for highly turbulent jet flames, respectively. For a fixed Fr, with the increasing RM, the tilt angle decreased. For highly turbulent jet flames, the contributions of air entrainment to the tilt angle could be ignored; with the same RM value, the flame deflected more than the low momentum jet flames.

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