查詢結果分析
相關文獻
頁籤選單縮合
題 名 | Flow Control of Turbulent Round Jet Using a Resonance Nozzle |
---|---|
作 者 | Shakouchi, Toshihiko; | 書刊名 | Journal of Aeronautics, Astronautics and Aviation. Series A |
卷 期 | 38:1 民95.03 |
頁 次 | 頁1-9 |
分類號 | 440.137 |
關鍵詞 | Resonance free and impinging jets; Flow control; Jet mixing; Heat transfer enhancement; |
語 文 | 英文(English) |
英文摘要 | We have conducted studies on the passive control of fluctuating velocity or the large vortex structure of jet flows in order to improve the mixing and diffusion properties using a non-circular nozzle, a coaxial exit. The use of a resonance nozzle many be also an effective means of controlling jet flows. However, the details of the flwo characteristics of the resonance jet have not been made clear. In this study, we experimentally clarify the flow characteristics of the round turbulent resonance free jet, such as resonance frequency, mean and fluctuating velocity profiles, jet spread, and others, and test its control by changing the volume of the resonance room. As a result, we established that the fluctuation, the decay of centerline velocity, and also the resonance jet’s spread are much larger than those for a conventional jet. We also discuss the impinging jet resonance and the enhancing the heat transfer of the impinging jet using a resonance nozzle. |
本系統中英文摘要資訊取自各篇刊載內容。