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気流デフレクタを持つ触媒コンバータ内の脈動流の圧力損失と速度分布
https://doi.org/10.14988/pa.2018.0000000099
https://doi.org/10.14988/pa.2018.00000000992330410b-2cca-4637-a1a5-d74fba382c29
名前 / ファイル | ライセンス | アクション |
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023059010003.pdf (1.4 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2018-05-23 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 気流デフレクタを持つ触媒コンバータ内の脈動流の圧力損失と速度分布 | |||||
タイトル | ||||||
言語 | ja-Kana | |||||
タイトル | キリュウ デフレクタ オ モツ ショクバイ コンバータナイ ノ ミャクドウリュウ ノ アツリョク ソンシツ ト ソクド ブンプ | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Pressure loss and velocity profile of pulsating flow in a catalytic converter with a flow deflector | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | 触媒コンバータ, 広がり管, 圧力損失, 脈動流, 自動車排気系 catalytic converter, diffuser, pressure loss, pulsating flow, automotive exhaust |
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資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.14988/pa.2018.0000000099 | |||||
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 |
平田, 勝哉
× 平田, 勝哉× 田中, 慎也× 井上, 大志× 尾崎, 智洋× 吉田, 隼樹× 谷川, 博哉 |
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著者所属 | ||||||
ja | ||||||
平田, 勝哉 / 同志社大学理工学部エネルギー機械工学科教授 | ||||||
著者所属 | ||||||
ja | ||||||
田中, 慎也 / Department of Mechanical Engineering, Doshisha University | ||||||
著者所属 | ||||||
ja | ||||||
井上, 大志 / Department of Mechanical Engineering, Doshisha University | ||||||
著者所属 | ||||||
ja | ||||||
尾崎, 智洋 / Department of Mechanical Engineering, Doshisha University | ||||||
著者所属 | ||||||
ja | ||||||
吉田, 隼樹 / Department of Mechanical Engineering, Doshisha University | ||||||
著者所属 | ||||||
ja | ||||||
谷川, 博哉 / Department of Mechanical Engineering, NIT Maizuru College | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 自動車排気系において, 触媒コンバータが圧力損失の主要因であり、エンジンの出力低下と燃費の悪化を引き起こす。圧力損失を低減する必要性に加えて、触媒担体を通過する流れは一様化が望まれ、温度分布の一様化により触媒性能の高効率化が提供される。過去に、著者らは、触媒コンバータのディフューザ部内に配置された気流デフレクタが、気流デフレクタなしの場合と比べて大幅に圧力損失低減と速度分布を改善できるとしている(平田他2006、2008)。これらは、全て定常流を対象としている。一方、実用的な排気流は様々な脈動成分を含んでいる。そこで、本研究では、脈動流における気流デフレクタによる圧力損失低減と速度分布の改善効果に及ぼす影響を調べる。その結果、気流デフレクタは、脈動流においても定常流と同様に気流デフレクタなしの場合よりも圧力低減と速度分布の改善をすることができる。 | |||||
言語 | ja | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In automobile-exhaust systems, catalytic converters are the main components to produce substantial pressure drops, which induce engine-power loss and fuel-consumption rise. In addition to the need to reduce the pressure loss, the flow passing through the catalytic substrate should be as uniform as possible, which provides a uniform thermal distribution and high catalytic-conversion efficiency. Recently, we have reported that a flow deflector placed inside a catalytic-converter diffuser part can drastically reduce the pressure loss and improve the velocity profile in comparison with the no-flow-deflector case (Hirata et al., 2006 & 2008). In those reports, our concern is restricted only to steady flow. On the other hand, practical exhaust flows often include various pulsative components. So, we investigate the effects of flow pulsation upon the flow-deflector performances such as the pressure-loss reduction and the velocity-profile improvement. As a result, the flow deflector can reduce the pressure loss and improve the velocity profile in comparison with the no-flow-deflector case, even on pulsating flow as well as steady flow. | |||||
言語 | en | |||||
書誌情報 |
ja : 同志社大学ハリス理化学研究報告 en : The Harris science review of Doshisha University 巻 59, 号 1, p. 25-36, 発行日 2018-04-30 |
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出版者 | ||||||
言語 | ja | |||||
出版者 | 同志社大学ハリス理化学研究所 | |||||
出版者(英) | ||||||
言語 | en | |||||
出版者 | Harris Science Research Institute of Doshisha University | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 21895937 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12716107 | |||||
権利者情報 | ||||||
権利者名 | 同志社大学ハリス理化学研究所 | |||||
言語 | ja | |||||
権利者名 | Harris Science Research Institute of Doshisha University | |||||
言語 | en | |||||
関連サイト | ||||||
関連タイプ | isFormatOf | |||||
識別子タイプ | URI | |||||
関連識別子 | https://doors.doshisha.ac.jp/opac/opac_link/bibid/SB12902196/?lang=0 | |||||
言語 | ja | |||||
関連名称 | 掲載刊行物所蔵情報へのリンク / Link to Contents | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
出版タイプ | ||||||
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 | 534.93 |