Phase-Averaged Mixing Characteristics of Multi-Jets Modified by Cyclic Perturbation
-
- TATSUMI K.
- Dept. of Mechanical Engineering & Science, Kyoto University, Kyoto 606-8501, Japan
-
- SHINOHARA E.
- Toyota Industries Corporations, Kariya, Aichi 448-8671, Japan
-
- MIZUNO M.
- Dept. of Mechanical Engineering & Science, Kyoto University, Kyoto 606-8501, Japan
-
- NAKABE K.
- Dept. of Mechanical Engineering & Science, Kyoto University, Kyoto 606-8501, Japan
この論文をさがす
抄録
Effects of a jet perturbation on mixing performance of an air-jet array were investigated experimentally. The jet array consists of three same-sized parallel jets, and the mass flow rate of the central jet is perturbed in a pulsatile or a sinusoidal cycle with the frequency, fr = 0, 1 or 2Hz. The aligned jets issued simultaneously without the jet perturbation (fr = 0Hz) shows good mixing performance in comparison with the jet array of three arithmetically-superimposed single jets. The flow condition with the jet perturbation (fr = 1 or 2Hz), on the other hand, is alternately changed, laminar or turbulent, in one cycle of the central jet perturbation. The time-averaged velocity profiles of the jet array obtained under certain perturbed conditions demonstrate an adverse change of the mixing performance at the locations near the nozzle and far downstream. Phase-averaged velocity profiles were thoroughly examined in order to understand such a mixing mechanism of the multiple jet flow.
収録刊行物
-
- 実験力学
-
実験力学 7 (Special_Issue), s6-s11, 2007
日本実験力学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001205190348544
-
- NII論文ID
- 130004489953
- 10019742287
-
- NII書誌ID
- AA11822914
-
- ISSN
- 18844219
- 13464930
-
- NDL書誌ID
- 8891907
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可