神戸大学附属図書館デジタルアーカイブ
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学内刊行物
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https://hdl.handle.net/20.500.14094/90008110
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2024-05-03
08:58 集計
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90008110 (fulltext)
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2.56 MB
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メタデータID
90008110
アクセス権
open access
出版タイプ
Accepted Manuscript
タイトル
Longitudinal oscillation of a liquid sheet by parallel air flows
著者
著者名
Oshima, Ippei
著者ID
A0931
研究者ID
1000020314502
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=1bb06a7d1bb25764520e17560c007669
著者名
Sou, Akira
宋, 明良
ソウ, アキラ
所属機関名
海事科学研究科
収録物名
International Journal of Multiphase Flow
巻(号)
110
ページ
179-188
出版者
Elsevier
刊行日
2019-01
公開日
2021-04-08
抄録
A liquid fuel sheet injected into the combustor of gas turbine engines is deformed and atomized by the complex interactions between the liquid sheet and air flows. Aiming at improving the control technology of a fuel spray, the oscillation phenomenon and the primary break-up process of a planar liquid sheet with air flows have been studied for many years. Based on the previous studies, we propose a new correlation on the longitudinal wavelength λLon given by and that on the oscillation frequency fLon of a liquid sheet given by , where MRLip is the lip momentum ratio defined in this study. In addition to previous visualization experiments of a planar liquid sheet and parallel air flows with various densities of gas and liquid, gas and liquid velocities, liquid sheet thicknesses and lip thicknesses, we carry out an additional experiment with various gas velocities and liquid viscosities to cover all the effects of fluid properties, injector geometries including gas and liquid boundary layers on the deformation and the atomization characteristics of the oscillating liquid sheet. Image analysis is conducted to obtain fLon. As a result, we confirm that liquid viscosity does not affect fLon and λLon of the liquid sheet in a wide range of liquid Reynolds number. Finally, we verify the validity of the correlations of λLon whose constant c is 14.3 and fLon whose constant c’ is 0.095.
キーワード
Gas turbine
Air-blast atomizer
Liquid sheet
Visualization
Lip thickness
Longitudinal wavelength
カテゴリ
海事科学研究科
学術雑誌論文
権利
© 2018 Elsevier Ltd. All rights reserved.
This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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資源タイプ
journal article
言語
English (英語)
ISSN
0301-9322
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関連情報
DOI
https://doi.org/10.1016/j.ijmultiphaseflow.2018.09.010
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