書誌事項
- タイトル別名
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- Large-Scale Fluctuations Existing in Flow Fields of Two-Dimensional Impinging Jet.
- 2ジゲン ショウトツ フンリュウ ノ ナガレバ ニ ソンザイスル ダイキボ ヘ
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There have been many investigations which deal with the large-scale fluctuation existing in the flow fields of the developed region of a two-dimensional free jet. However most of them have been made using a jet which has a top-hat velocity profile at the nozzle exit. The objective of the present investigation is to compare the characteristics of large-scale structures existing in two types of flow of the two-dimensional free jet, where the exit velocity profile is the "top-hat" type or "fully developed" type. We also studied the flow fields of a two-dimensional impinging jet. First, it was elucidated that the large-scale fluctuation also existed in the flow field of a fully developed jet. Dimensionless frequency in the initial region of the large-permaneny hyphon scale fluctuation obtained from x-direction data was proportional to the dimensionless distance to the power of - 1/3, and that obtained from y-direction data, to the power of - 2/3, instead of the power of - 3/2 obtained in the developed region of the two-dimensional free jet. Second, it was ascertained that the same kind of large-scale fluctuation as in the flow field of the developed region of the two-dimensional free jet also existed in the flow field of the two-dimensional impining jet.
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 59 (568), 3756-3761, 1993
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
- 1390282680872369280
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- NII論文ID
- 130004220978
- 110002392359
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- NII書誌ID
- AN00187441
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- ISSN
- 18848346
- 03875016
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- NDL書誌ID
- 3859548
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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
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