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Experimental Study of Swirling Flow with a Surfactant for Drag Reduction in a Pipe
http://hdl.handle.net/2298/13149
http://hdl.handle.net/2298/13149251b12db-555d-422c-b4ec-f7ef13ae0460
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
110003479005.pdf (632.3 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2009-11-19 | |||||
| タイトル | ||||||
| タイトル | Experimental Study of Swirling Flow with a Surfactant for Drag Reduction in a Pipe | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | Swirling Flow, Surfactant, Non-Newtonian Fluid, Flow Measurement, Drag Reduction, Laser Doppler Velocimeter (LDV), Pipe Flow | |||||
| 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 | journal article | |||||
| 著者 |
宗像, 瑞恵
× 宗像, 瑞恵× 芝田, 英治× 松崎, 和愛× 大庭, 英樹 |
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| 別言語の著者 |
Munekata, Mizue
× Munekata, Mizue× 芝田, 英治× Matsuzaki, Kazuyoshi× Ohba, Hideki |
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| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The surfactant used in this study is well known as an additive for drag reduction in straight (non-swirling) pipe flow. This paper deals with swirling flow characteristics of a surfactant solution. We investigated the effects of surfactant concentration and Reynolds number on flow characteristics. It is shown that the drag reducing effect is less than in straight pipe flow, and that the surfactant solution must be highly concentrated with great elasticity in order to produce a drag reduction. As the results of velocity measurement by LDV and wall pressure measurement in the axial direction, it is expected that the swirl intensity of the drag reducing swirling flow with a surfactant decays more quickly as the flow progresses downstream. And we propose that this mechanism helps create the drag reduction in swirling flow. For the velocity profiles of drag reducing swirling flow, only the forced-vortex type is observed in this experiment. This suggests that the velocity profiles of drag reducing swirling flow change more quickly to a forced-vortex type from a Rankin's combined vortex type. It is also reported that turbulence intensity of drag reducing swirling flow is smaller than turbulence intensity of a solvent. | |||||
| 書誌情報 |
JSME international journal. Ser. B, Fluids and thermal engineering 巻 45, 号 1, p. 35-40, 発行年 2002-02-15 |
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| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10888815 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 関連識別子 | https://doi.org/10.1299/jsmeb.45.35 | |||||
| 権利 | ||||||
| 権利情報 | 社団法人 日本機械学会 | |||||
| 情報源(ISSN) | ||||||
| 関連名称 | 13408054 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 値 | 632331 bytes | |||||
| 著者版フラグ | ||||||
| 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Scheme | NDC | |||||
| 主題 | 530 | |||||
| 出版者 | ||||||
| 出版者 | 社団法人 日本機械学会 | |||||
| 出版者（ヨミ） | ||||||
| 値 | ニホン キカイ ガッカイ | |||||
| 別言語の出版者 | ||||||
| 値 | The Japan Society of Mechanical Engineers | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 値 | 雑誌掲載論文 | |||||
| 資源タイプ・NII | ||||||
| 値 | Journal Article | |||||
| 資源タイプ・DCMI | ||||||
| 値 | text | |||||
| 資源タイプ・ローカル表示コード | ||||||
| 値 | 01 | |||||
| コメント | ||||||
| 値 | 本文データは学協会の許諾に基づきCiNiiから複製したものである。 | |||||
