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A unified approach to an augmented Burgers equation for the propagation of sonic booms
https://jaxa.repo.nii.ac.jp/records/22727
https://jaxa.repo.nii.ac.jp/records/227279b3263d6-2971-4950-b6cc-270ddebcac0a
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-07-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A unified approach to an augmented Burgers equation for the propagation of sonic booms | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
山本, 雅英
× 山本, 雅英× 橋本, 敦× 青山, 剛史× 酒井, 武治× Yamamoto, Masafumi× Hashimoto, Atsushi× Aoyama, Takashi× Sakai, Takeharu |
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著者所属 | ||||||
株式会社計算力学研究センター | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
名古屋大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Research Center of Computational Mechanics, Inc. | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Nagoya University | ||||||
出版者(英) | ||||||
出版者 | Acoustical Society of America | |||||
書誌情報 |
en : The Journal of the Acoustical Society of America 巻 137, 号 4, p. 1857-1866, 発行日 2015-04 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Nonlinear propagation through a relaxing atmosphere of pressure disturbances extracted from a computational fluid dynamics (CFD) solution of the flow around a supersonic aircraft is simulated using an augmented Burgers equation. The effects of nonlinearity, geometrical spreading, atmospheric inhomogeneity, thermoviscous attenuation, and molecular vibration relaxation are taken into account. The augmented Burgers equation used for sonic boom propagation calculations is often solved by the operator splitting method, but numerical difficulties arise with this approach when dissipation is not effective. By re-examining the solution algorithms for the augmented Burgers equation, a stable method for handling the relaxation effect has been developed. This approach can handle the Burgers equation in a unified manner without operator splitting and, therefore, the resulting scheme is twice as fast as the original one. The approach is validated by comparing it with an analytical solution and a detailed CFD of dispersed plane wave propagation. In addition, a rise time prediction of low-boom supersonic aircraft is demonstrated. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0001-4966 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00253792 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1121/1.4916833 | |||||
関連名称 | info:doi/10.1121/1.4916833 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: PA1620030000 |