دورية أكاديمية
Displacement and Extinction of Jet Diffusion Flame Exposed to Speaker-Generated Traveling Sound Waves
| العنوان: | Displacement and Extinction of Jet Diffusion Flame Exposed to Speaker-Generated Traveling Sound Waves |
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| المؤلفون: | Ya-Jie Zhang, Huzaifa Jamil, Yan-Ju Wei, Ya-Jing Yang |
| المصدر: | Applied Sciences, Vol 12, Iss 24, p 12978 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Technology LCC:Engineering (General). Civil engineering (General) LCC:Biology (General) LCC:Physics LCC:Chemistry |
| مصطلحات موضوعية: | extinction mechanism, sound waves, jet diffusion flame, membrane oscillations, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999 |
| الوصف: | Acoustic flame suppression is a potential technology which does away with the need to carry fire-extinguishing media and does not cause secondary pollution. We herein reported an experimental study on the displacement and extinction of jet diffusion flames exposed to speaker-generated traveling sound waves with a frequency of 110–150 Hz and local sound pressure of 2–16 Pa. The simultaneous movement of the flame and fuel was captured using a high-speed camera and schlieren techniques. Results showed that the flame oscillation was dominated by induced wind produced by membrane vibrations instead of sound pressure, and this induced wind’s frequency was the same as that of sound waves. Moreover, the movement of unburned fuel and flame was not synchronous, which resulted in an interrupted fuel–flame cycle. Consequently, the flame was gradually suppressed and completely extinguished after several oscillation cycles. Finally, we determined the extinction criterion that when the dimensionless gap between the flame and the unburned fuel was greater than or equal to 7, the flame would be extinguished. Results clearly revealed the mechanism of acoustic fire extinguishing, which provided reference for the feasibility of acoustic fire-extinguishing applications. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2076-3417 |
| Relation: | https://www.mdpi.com/2076-3417/12/24/12978; https://doaj.org/toc/2076-3417 |
| DOI: | 10.3390/app122412978 |
| URL الوصول: | https://doaj.org/article/4980c5ed6d0b434394934cfba167241c |
| رقم الأكسشن: | edsdoj.4980c5ed6d0b434394934cfba167241c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20763417 |
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| DOI: | 10.3390/app122412978 |