Flow field and interaction of lifted flames in a triple port burner
In this study, we experimentally examined a combustion field in a triple port burner. There are four flame configurations, consisting of attached flames, inner attached/outer lifted flames, inner lifted/outer attached flames, and twin lifted flames. Focusing on the transition process of these flames...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2014-12-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0372/_pdf/-char/en |
| _version_ | 1828329961602154496 |
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| author | Kazuhiro YAMAMOTO Shinya KATO Naoki HAYASHI Hiroshi YAMASHITA |
| author_facet | Kazuhiro YAMAMOTO Shinya KATO Naoki HAYASHI Hiroshi YAMASHITA |
| author_sort | Kazuhiro YAMAMOTO |
| collection | DOAJ |
| description | In this study, we experimentally examined a combustion field in a triple port burner. There are four flame configurations, consisting of attached flames, inner attached/outer lifted flames, inner lifted/outer attached flames, and twin lifted flames. Focusing on the transition process of these flames, the flow field was investigated when the external air flow velocity was increased at constant internal air flow and fuel flow velocities. Results show that, except for the attached flame, when the flame is lifted, the axial velocity toward the leading-edge flame gradually decreases downstream, takes its minimum, and then increases very rapidly. This minimum velocity is larger than the so-called laminar burning velocity. It should be noted that, different from a single lifted flame, the inner or outer flame is affected by the other flame located more upstream. For example, the downstream lifted flame faces the flow induced by the upstream lifted flame. Resultantly, a unique behavior of flip-flop between inner and outer flames is observed. |
| first_indexed | 2024-04-13T20:32:58Z |
| format | Article |
| id | doaj.art-20aeb40542cb4337a79e9df1d903735b |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-13T20:32:58Z |
| publishDate | 2014-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-20aeb40542cb4337a79e9df1d903735b2022-12-22T02:31:07ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-12-0180820TEP0372TEP037210.1299/transjsme.2014tep0372transjsmeFlow field and interaction of lifted flames in a triple port burnerKazuhiro YAMAMOTO0Shinya KATO1Naoki HAYASHI2Hiroshi YAMASHITA3Department of Mechanical and Science Engineering, Nagoya UniversityDepartment of Mechanical and Science Engineering, Nagoya UniversityDepartment of Mechanical and Science Engineering, Nagoya UniversityDepartment of Mechanical and Science Engineering, Nagoya UniversityIn this study, we experimentally examined a combustion field in a triple port burner. There are four flame configurations, consisting of attached flames, inner attached/outer lifted flames, inner lifted/outer attached flames, and twin lifted flames. Focusing on the transition process of these flames, the flow field was investigated when the external air flow velocity was increased at constant internal air flow and fuel flow velocities. Results show that, except for the attached flame, when the flame is lifted, the axial velocity toward the leading-edge flame gradually decreases downstream, takes its minimum, and then increases very rapidly. This minimum velocity is larger than the so-called laminar burning velocity. It should be noted that, different from a single lifted flame, the inner or outer flame is affected by the other flame located more upstream. For example, the downstream lifted flame faces the flow induced by the upstream lifted flame. Resultantly, a unique behavior of flip-flop between inner and outer flames is observed.https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0372/_pdf/-char/enburnerflamepivlifted flamegaseous fuellaser diagnostics |
| spellingShingle | Kazuhiro YAMAMOTO Shinya KATO Naoki HAYASHI Hiroshi YAMASHITA Flow field and interaction of lifted flames in a triple port burner Nihon Kikai Gakkai ronbunshu burner flame piv lifted flame gaseous fuel laser diagnostics |
| title | Flow field and interaction of lifted flames in a triple port burner |
| title_full | Flow field and interaction of lifted flames in a triple port burner |
| title_fullStr | Flow field and interaction of lifted flames in a triple port burner |
| title_full_unstemmed | Flow field and interaction of lifted flames in a triple port burner |
| title_short | Flow field and interaction of lifted flames in a triple port burner |
| title_sort | flow field and interaction of lifted flames in a triple port burner |
| topic | burner flame piv lifted flame gaseous fuel laser diagnostics |
| url | https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0372/_pdf/-char/en |
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