대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)
- 제22권4호
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- Pages.452-458
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- 1998
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
DOI QR Code
고속 충돌제트의 불안정특성
Instability of High-Speed Impinging Jets(I)
- 권영필 (숭실대학교 기계공학과)
- Gwon, Yeong-Pil (Dept.of Mechanical Engineering, Soongsil University)
- 발행 : 1998.03.01
초록
The objective of this study is to obtain the unstable characteristics of the high-speed two-dimensional jet impinging normally onto a flat plate. The study is based on the feedback model and the experiment of the frequency characteristics of the impinging tones. Using the experimental data for the tonal frequencies of the impinging tones the convection speed of the unstable jet is obtained along with all the other features. Three kinds of unstable modes are clarified: asymmetric