書誌事項
- タイトル別名
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- An Experimental Study on a Turbulent Flow in a Two-Dimensional Curved Channel. (Space-Time Correlation and Spectra of Velocity Fluctuations).
- 2ジゲン マガリ リュウロナイ ランリュウ ニ カンスル ジッケンテキ ケンキ
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The space-time correlations and power spectra of velocity fluctuations are measured in two-dimensional turbulent flows through curved and straight channels. Noticeable differences are found between the experimental results of the two channels. While the effective power spectrum in the straight channel has only one maximum, that in the curved channel has two maxima on both sides of a wave number corresponding to the dissipation length. The spanwise correlation of radial velocity fluctuations in the curved channel takes a large negative maximum at a distance of about half the channel width. The streamwise integral length scales in the outer-wall side of the curved channel increase by about ten times those in the straight channel. These results indicate that intensive large-scale eddies which are unsteady but resemble Taylor-Gortler vortices exist in the curved channel.
収録刊行物
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- 日本機械学会論文集B編
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日本機械学会論文集B編 58 (545), 119-126, 1992
一般社団法人 日本機械学会
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詳細情報
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- CRID
- 1390001205895936640
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- NII論文ID
- 110002390462
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- NII書誌ID
- AN00187441
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- COI
- 1:CAS:528:DyaK38XhvFKrtr4%3D
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- ISSN
- 18848346
- 03875016
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- HANDLE
- 10191/5740
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- NDL書誌ID
- 3752318
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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
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可