Visualization of Self-Sustained Oscillation in an Impinging Supersonic Rectangular Jet by LIF
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概要
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Feedback mechanism of self-sustained oscillation in supersonic impinging jets is studied experimentally by using a laser-induced fluorescence (LIF) technique. Phase velocities of disturbances in the flow field are obtained from a time-dependent cross-correlation function between a pressure sensor signal at a reference point and the LIF signal. A feature of disturbance propagation can be visualized by drawing maps for the cross-correlation coefficients on a plane at successive delay-times and making an animation. The discrete frequencies appeared near the neutral wave frequencies proposed by Tam and symmetric and asymmetric modes of the neutral wave were observed corresponding to his theory.
- 社団法人 可視化情報学会の論文
社団法人 可視化情報学会 | 論文
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