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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

遷音速鈍頭2次元物体でのタブによるベース抵抗低減

http://hdl.handle.net/2237/13873
http://hdl.handle.net/2237/13873
79644326-0a5e-4a6e-a716-3d7dc39cc2b6
名前 / ファイル ライセンス アクション
jjsass_v56_n648_p15.pdf jjsass_v56_n648_p15.pdf (1.6 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2010-07-27
タイトル
タイトル 遷音速鈍頭2次元物体でのタブによるベース抵抗低減
言語 ja
その他のタイトル
その他のタイトル Base Drag Reduction of 2D Bluff Body by Using Tabs at Transonic Speeds
言語 en
著者 橋本, 敦

× 橋本, 敦

WEKO 37986

ja 橋本, 敦

Search repository
HASHIMOTO, Atsushi

× HASHIMOTO, Atsushi

WEKO 37987

en HASHIMOTO, Atsushi

Search repository
小林, 貴広

× 小林, 貴広

WEKO 37988

ja 小林, 貴広

Search repository
KOBAYASHI, Takahiro

× KOBAYASHI, Takahiro

WEKO 37989

en KOBAYASHI, Takahiro

Search repository
中村, 佳朗

× 中村, 佳朗

WEKO 37990

ja 中村, 佳朗

Search repository
NAKAMURA, Yoshiaki

× NAKAMURA, Yoshiaki

WEKO 37991

en NAKAMURA, Yoshiaki

Search repository
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
キーワード
主題Scheme Other
主題 Bluff Body
キーワード
主題Scheme Other
主題 Tansonic Flow
キーワード
主題Scheme Other
主題 Base Flow
キーワード
主題Scheme Other
主題 Drag Reduction
キーワード
主題Scheme Other
主題 Flow Control
抄録
内容記述 As base drag accounts for most of the total drag for spacecraft with a large base area, reduction in the base drag improves its aerodynamic performance. In the present study, a method using a pair of tabs normal to the base surface is proposed to reduce the base drag, and its effects on drag reduction are experimentally examined for a two-dimensional, simple bluff body with a large base area, the cross-section of which consists of a circular forebody and a rectangular afterbody, by changing the tab’s position and length. In addition, the flow fields around the model with/without tabs were visualized by the schlieren method with a high speed video camera, and CFD analysis was also made to supplement the experimental results. It was found that the tab method can remarkably increase the base pressure, which leads to a large decrease in the base drag. In the case where a pair of tabs with a non-dimensional length of 0.38 are installed at the base edges, the total drag is reduced by about 20.6% at a Mach number of 0.6 compared with that in the baseline case without tabs. Even when short tabs with a non-dimensional length of 0.07 are employed, about 10.0% reduction in the base drag is achieved. Thus, it was made clear from this study that the tab method proposed here is effective to decrease base drag in the transonic flow.
言語 en
内容記述タイプ Abstract
出版者
言語 ja
出版者 日本航空宇宙学会
言語
言語 jpn
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ISSN
収録物識別子タイプ PISSN
収録物識別子 1344-6460
書誌情報 ja : 日本航空宇宙学会論文集

巻 56, 号 648, p. 15-21, 発行日 2008-01-05
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/13873
識別子タイプ HDL
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