書誌事項
- タイトル別名
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- Study on Complex POD Analysis for the Estimation of Coherent Structures
- ヘンドウバ ノ ソシキテキ ナ コウゾウ オ ヒョウカ スル タメ ノ フクソ POD カイセキ ニ カンスル ケンキュウ
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抄録
The estimation of the coherent structures existing in a random phenomenon is important for the study of fluctuating fields, such as the flow fields or the pressure fields around a structure. For the estimation of the coherent structures, Proper Orthogonal Decomposition (POD) is available, which is able to obtain the coherent structures as the principal components of the fluctuating fields. However the components calculated by the POD analysis are stationary modes in space, therefore it is impossible to express the advection phenomenon as a single principal component. In such a case, the complex POD analysis is available. In this paper, the procedure of the complex POD analysis is described. And also the interpretation of it by the use of the complex envelope is shown. The calculations of some model cases are carried out by the POD analysis and the complex POD analysis. By comparing the results, the effectiveness of the complex POD analysis is shown.
収録刊行物
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- 日本風工学会論文集
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日本風工学会論文集 31 (4), 123-130, 2006
一般社団法人 日本風工学会
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詳細情報 詳細情報について
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- CRID
- 1390001205229165952
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- NII論文ID
- 10018290869
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- NII書誌ID
- AN10072785
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- ISSN
- 09121935
- 1349340X
- 13493507
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- NDL書誌ID
- 8580880
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
