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水素ディーゼル機関の基礎的研究 (第1報 -非定常水素噴流の混合気形成の解析-)
https://doi.org/10.14988/re.2017.0000015829
https://doi.org/10.14988/re.2017.000001582915337de8-b06c-4e49-b522-db9e60952e35
名前 / ファイル | ライセンス | アクション |
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Item type | 報告書 / Research Paper(1) | |||||||||||
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公開日 | 2010-11-25 | |||||||||||
タイトル | ||||||||||||
言語 | ja | |||||||||||
タイトル | 水素ディーゼル機関の基礎的研究 (第1報 -非定常水素噴流の混合気形成の解析-) | |||||||||||
タイトル | ||||||||||||
言語 | ja-Kana | |||||||||||
タイトル | スイソ ディーゼル キカン ノ キソテキ ケンキュウ ダイ 1ポウ ヒテイジョウ スイソ フンリュウ ノ コンゴウキ ケイセイ ノ カイセキ | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | Fundamental Study of Direct Injection Diesel Engine Fuelled with Hydrogen(1st Report: Analysis on Process of Mixture Formation in Unsteady Hydrogen Jet) | |||||||||||
言語 | ||||||||||||
言語 | jpn | |||||||||||
キーワード | ||||||||||||
主題 | Underexpanded jet, Mach Disc, Barrel Shock, Supersonic Jet Flow, Jet Developing process, Momentum Theory, Mixture Formation, Rayleigh Scattering | |||||||||||
資源タイプ | ||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||||||||
資源タイプ | research report | |||||||||||
ID登録 | ||||||||||||
ID登録 | 10.14988/re.2017.0000015829 | |||||||||||
ID登録タイプ | JaLC | |||||||||||
アクセス権 | ||||||||||||
アクセス権 | open access | |||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
著者 |
藤本, 元
× 藤本, 元
WEKO
6
× 千田, 二郎× 大田, 篤志 |
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著者所属 | ||||||||||||
ja | ||||||||||||
藤本, 元 / 同志社大学 | ||||||||||||
著者所属 | ||||||||||||
ja | ||||||||||||
千田, ニ郎 / 同志社大学 | ||||||||||||
著者所属 | ||||||||||||
ja | ||||||||||||
大田, 篤志 / 同志社大学大学院 | ||||||||||||
抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | In this study, the mixture formation processes of high pressure hydrogen jets were investigated using a constant-volume vessel. The mixture formations of steady gas jets injected into atmospheric pressure ambient are well known. However, there are few works about the mixture formations of high pressure hydrogen jets injected into high pressure ambient. Also, in gas releases having a pressure ratio of exit pressure to ambient pressure greater than 1.89, underexpanded jet will be formed. So the mixture formations of high pressure gas jets are different from those of steady gas jets. Therefore, in this study, the jet flows near the nozzle exit and developing process of high pressure hydrogen jets were observed by shadowgraph photography with changing conditions of injection, ambient, and orifice diameter. In addition, the fuel distributions of unsteady jets were analyzed with Rayleigh scattering measurements. The conclusions of this study are shown as follows: (1) The pressure ratio has significant effects on underexpanded jet structures. (2) The jet penetration predicted by the modified momentum theory was in reasonable agreement with the experimental results for various condition of orifice diameter. (3) In the case of the smaller orifice, comparatively uniform mixtures distributed in the downstream region. | |||||||||||
言語 | en | |||||||||||
書誌情報 |
ja : 研究成果報告書(2003年度) p. 105-110, 発行日 2004-07-17 |
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出版者(英) | ||||||||||||
言語 | en | |||||||||||
出版者 | Research Center for Energy Conversion System of Doshisha University | |||||||||||
権利者情報 | ||||||||||||
権利者名 | Research Center for Energy Conversion System of Doshisha University | |||||||||||
言語 | en | |||||||||||
フォーマット | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | application/pdf | |||||||||||
出版者タイプ | ||||||||||||
出版タイプ | VoR | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
日本十進分類法 | ||||||||||||
主題 | 575.1 |