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Numerical investigations on shock oscillations ahead of a hemispherical shell in supersonic flow
http://hdl.handle.net/10258/00008944
http://hdl.handle.net/10258/00008944f392aac7-5659-4575-872c-9dabe88c5f93
名前 / ファイル | ライセンス | アクション |
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sw_26-3_299_310.pdf (2.5 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||||||||
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公開日 | 2016-06-27 | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | Numerical investigations on shock oscillations ahead of a hemispherical shell in supersonic flow | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
キーワード | ||||||||||||
言語 | en | |||||||||||
主題Scheme | Other | |||||||||||
主題 | Shock oscillations | |||||||||||
キーワード | ||||||||||||
言語 | en | |||||||||||
主題Scheme | Other | |||||||||||
主題 | Supersonic parachutes | |||||||||||
キーワード | ||||||||||||
言語 | en | |||||||||||
主題Scheme | Other | |||||||||||
主題 | Shock-vortex interactions | |||||||||||
キーワード | ||||||||||||
言語 | en | |||||||||||
主題Scheme | Other | |||||||||||
主題 | Cavity flow | |||||||||||
キーワード | ||||||||||||
言語 | en | |||||||||||
主題Scheme | Other | |||||||||||
主題 | Numerical simulations | |||||||||||
資源タイプ | ||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||||||||
資源タイプ | conference paper | |||||||||||
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 |
畠中, 和明
× 畠中, 和明
WEKO
59465
× RAO, Srisha M.V.× 齋藤, 務× 水書, 稔治 |
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室蘭工業大学研究者データベースへのリンク | ||||||||||||
齋藤 務(SAITO Tsutomu) | ||||||||||||
http://rdsoran.muroran-it.ac.jp/html/100000049_ja.html | ||||||||||||
室蘭工業大学研究者データベースへのリンク | ||||||||||||
畠中 和明 (HATANAKA Kazuaki) | ||||||||||||
http://rdsoran.muroran-it.ac.jp/html/100000007_ja.html | ||||||||||||
抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | A clear understanding of the mechanism responsible for large amplitude shock pulsations ahead of a hemispherical cavity in supersonic flow is presented for the first time in this article. This has applications in supersonic parachute decelerators during the atmospheric descent stage of aerospace vehicles. A cell-centered finite volume code FaSTAR is used to solve the full Navier–Stokes equations on a hemispherical shell facing a Mach 4.0 supersonic free stream. The numerical method is validated against earlier experimental results. First, Flow Configuration A appears consisting of an axisymmetric shock that undergoes low-amplitude oscillations. This flow transitions to Flow Configuration B that has an asymmetric shock structure and undergoes large-amplitude non-stationary shock pulsations. The shock stand-off distance in Flow Configuration B is 1.65 times that in Flow Configuration A. The generation of vortices from the curved shock, amplification of vortices of one kind due to the dynamics of the cavity flow, and further interaction of these amplified vortices with the shock in a loop causes the large-amplitude shock pulsations. The oscillation frequencies as determined from cavity pressure and shock stand-off distance signals extracted from the unsteady results are 1.26 kHz during Flow Configuration A, and 859 and 863 Hz during the non-stationary pulsations of Flow Configuration B. The Helmholtz resonator model predicts quite accurately the frequency of Flow Configuration A (1.27 kHz), and to a good extent the frequency in Flow Configuration B (916.7 Hz). | |||||||||||
言語 | en | |||||||||||
書誌情報 |
en : Shock Waves 巻 26, 号 3, p. 299-310, 発行日 2016-05 |
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会議記述 | ||||||||||||
会議名 | 21st International Shock Interaction Symposium (ISIS) | |||||||||||
言語 | en | |||||||||||
回次 | 21 | |||||||||||
開始年 | 2014 | |||||||||||
開始月 | 8 | |||||||||||
開始日 | 3 | |||||||||||
終了年 | 2014 | |||||||||||
終了月 | 8 | |||||||||||
終了日 | 8 | |||||||||||
開催期間 | AUG 03-08, 2014 | |||||||||||
言語 | en | |||||||||||
開催地 | Riga | |||||||||||
言語 | en | |||||||||||
開催国 | LVA | |||||||||||
注記 | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | Conference: 21st International Shock Interaction Symposium (ISIS) | |||||||||||
言語 | en | |||||||||||
注記 | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | Location: Riga, LATVIA | |||||||||||
言語 | en | |||||||||||
注記 | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | Date: AUG 03-08, 2014 | |||||||||||
言語 | en | |||||||||||
出版者 | ||||||||||||
言語 | en | |||||||||||
出版者 | Springer-Verlag | |||||||||||
出版者版へのリンク | ||||||||||||
10.1007/s00193-015-0613-0 | ||||||||||||
http://dx.doi.org/10.1007/s00193-015-0613-0 | ||||||||||||
DOI | ||||||||||||
関連タイプ | isVersionOf | |||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | info:doi/10.1007/s00193-015-0613-0 | |||||||||||
日本十進分類法 | ||||||||||||
主題Scheme | NDC | |||||||||||
主題 | 501 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | PISSN | |||||||||||
収録物識別子 | 0938-1287 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | ISSN | |||||||||||
収録物識別子 | 1432-2153 | |||||||||||
書誌レコードID | ||||||||||||
収録物識別子タイプ | NCID | |||||||||||
収録物識別子 | AA10912385 | |||||||||||
権利 | ||||||||||||
言語 | en | |||||||||||
権利情報 | © Springer-Verlag 2016 The final publication is available at Springer via http://dx.doi.org/10.1007/s00193-015-0613-0 | |||||||||||
著者版フラグ | ||||||||||||
出版タイプ | AM | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||
フォーマット | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | application/pdf |