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データマイニングによる斜め平板に衝突する超音速ジェットから発生する音響波の理解
https://jaxa.repo.nii.ac.jp/records/4280
https://jaxa.repo.nii.ac.jp/records/42800625783a-6904-48cb-8922-0c25a2ae4a2c
名前 / ファイル | ライセンス | アクション |
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61958040.pdf (1.5 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | データマイニングによる斜め平板に衝突する超音速ジェットから発生する音響波の理解 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Data Mining for the Understanding of Acoustics Waves Generation from a Supersonic Jet Impinging on Inclined Flat Plate | |||||
著者 |
森澤, 征一郎
× 森澤, 征一郎× 野々村, 拓× 大山, 聖× 藤井, 孝藏× 大林, 茂× Morizawa, Seiichiro× Nonomura, Taku× Oyama, Akira× Fujii, Kozo× Obayashi, Shigeru |
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著者所属 | ||||||
東北大学大学院 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS) | ||||||
著者所属 | ||||||
東北大学流体科学研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
Tohoku University | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Fluid Science, Tohoku University | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Proceedings of 44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012 巻 JAXA-SP-12-010, p. 237-242, 発行日 2013-03-29 |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 第44回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2012 (2012年7月5日-6日. 富山国際会議場大手町フォーラム), 富山市, 富山県 | |||||
会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012 (July 5-6, 2012. Toyama International Conference Center), Toyama Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Key features from acoustics waves generated from a supersonic jet impinging on three kinds of inclined flat plates are extracted by applying two types of data mining techniques. One is cluster analysis which consists of self-organizing map and k-means method, and the other is proper orthogonal decomposition (POD) with Fourier transformation. The flow data is taken from the numerical simulation data in the previous study. First, the cluster analysis is applied to the dataset based on the normalization of the sound pressure level spectra on symmetrical plane. The results show the apparent characterization of regions based the frequencies of acoustics waves. Clusters corresponding to three kinds of acoustics waves are clearly generated. Next, POD is applied to two-dimensional pressure distribution in the acoustics fields. The results reveal the source locations where strong acoustics waves are generated. These results agree with the previous obse""" rvations. Thus, this study shows the capability of data mining to extract key features of acoustics waves generated from the flow field. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0061958040 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-12-010 |