Analysis of local flame-spread characteristics of an unevenly arranged droplet cloud in microgravity

• Material Type: 記事
• Title: Analysis of local flame-spread characteristics of an unevenly arranged droplet cloud in microgravity
• Author/Editor: Yasuko Yoshida; Narita Sano; Takehiko Seo
• Publication, Distribution, etc.: 日本 : 日本マイクログラビティ応用学会
• Publication Date: 2018-04-30
• Publication Date (W3CDTF): 2018-04-30
• Periodical title: International journal of microgravity science and application : IJMSA
• No. or year of volume/issue: 35(2)
• Volume: 35(2)
• ISSN (Periodical Title): 2188-9783
• ISSN-L (Periodical Title): 0915-3616
• Text Language Code: eng
• DOI: 10.15011//jasma.35.350203; https://doi.org/10.15011//jasma.35.350203
• Persistent ID (NDL): info:ndljp/pid/11276619; https://dl.ndl.go.jp/pid/11276619
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > 学術機関 > 学協会; https://dl.ndl.go.jp/collections/B00043
• Acquisition Basis: オンライン資料収集制度
• Date Accepted (W3CDTF): 2019-04-24T16:29:03+09:00
• Date Captured (W3CDTF): 2018-08-20
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): https://www.jasma.info/journal/?report=analysis-of-local-flame-spread-characteristics-of-an-unevenly-arranged-droplet-cloud-in-microgravity
• Periodical Title (Persistent ID (NDL)): info:ndljp/pid/11276614; https://dl.ndl.go.jp/pid/11276614
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• Summary, etc.: As a preliminary experiment of the “Group Combustion” experiment conducted in the Japanese Experiment Module “Kibo“ aboard the International Space Station (ISS) in 2017, a combustion experiment of an unevenly arranged droplet cloud with 148 n-decane droplets tethered on a SiC-fiber lattice was conducted in microgravity during parabolic flight of an aircraft. In this study, three methods of identifying the local flame-spread direction were proposed to determine the local flame-spread rate between two adjacent droplets of an unevenly arranged droplet cloud considering the local flame-spread direction. The first method employed the vertical direction from the isothermal line to the unburned droplet. The isothermal line was approximated based on the luminance of SiC fibers tethering droplets. The second method considered the luminance distribution of the initial flame immediately after ignition. The third method compared the local flame-spread-rate candidates from neighboring droplets with the flame spread-rate of the linear droplet array. It was possible to identify the local flame-spread direction by any one of these methods, and the local flame-spread rate is calculated between two droplets close to this direction. The results suggest that there are many conditions under which the local flame-spread rate of an unevenly arranged droplet cloud is greater than the flame spread rate of the linear droplet array.
• DOI: 10.15011//jasma.35.350203
• Access Restrictions: インターネット公開
• Data Provider (Database): 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• Summary, etc.: As a preliminary experiment of the “Group Combustion” experiment conducted in the Japanese Experiment Module “Kibo“ aboard the International Space Station (ISS) in 2017, a combustion experiment of an unevenly arranged droplet cloud with 148 n-decane droplets tethered on a SiC-fiber lattice was conducted in microgravity during parabolic flight of an aircraft. In this study, three methods of identifying the local flame-spread direction were proposed to determine the local flame-spread rate between two adjacent droplets of an unevenly arranged droplet cloud considering the local flame-spread direction. The first method employed the vertical direction from the isothermal line to the unburned droplet. The isothermal line was approximated based on the luminance of SiC fibers tethering droplets. The second method considered the luminance distribution of the initial flame immediately after ignition. The third method compared the local flame-spread-rate candidates from neighboring droplets with the flame spread-rate of the linear droplet array. It was possible to identify the local flame-spread direction by any one of these methods, and the local flame-spread rate is calculated between two droplets close to this direction. The results suggest that there are many conditions under which the local flame-spread rate of an unevenly arranged droplet cloud is greater than the flame spread rate of the linear droplet array.
• DOI: 10.15011//jasma.35.350203; https://doi.org/10.15011//jasma.35.350203
• Access Restrictions: インターネット公開
• Related Material (URI): http://id.ndl.go.jp/digimeta/11276619; https://dl.ndl.go.jp/pid/11276619
• Data Provider (Database): 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• Original Data Provider (Database): Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; CiNii Articles; 科学研究費助成事業データベース; https://kaken.nii.ac.jp/ja
• NAID: 130007842582