Abstract
A method for measuring propagation of disturbance in a high-speed flow has been developed by using a laser-induced fluorescence (LIF) technique. A cross-correlation function between the time- dependent LIF signal and a pressure sensor signal at a reference point enables to measure a propagation speed of disturbance. Through a bandpass filter, the speed of disturbance with a particular frequency can be obtained. A feature of disturbance propagation can be grasped by drawing maps for the cross-correlation coefficients on a space at successive delay-times and making an animation. The method was applied to a supersonic flow over a rectangular cavity with length to depth ratio of 2, to elucidate feedback mechanisms of self-sustaining flow oscillation with several dominant frequencies.
| Original language | English |
|---|---|
| Pages (from-to) | 948-954 |
| Number of pages | 7 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 65 |
| Issue number | 631 |
| DOIs | |
| Publication status | Published - Jan 1 1999 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering
Cite this
A measurement of disturbance propagation in high-speed flow by a laser induced fluorescence method (Application to a supersonic cavity flow). / Inoue, Masahiro; Muraishi, Takashi; Kajiyama, Shusaku; Furukawa, Masato; Masuda, Mitsuharu.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 65, No. 631, 01.01.1999, p. 948-954.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A measurement of disturbance propagation in high-speed flow by a laser induced fluorescence method (Application to a supersonic cavity flow)
AU - Inoue, Masahiro
AU - Muraishi, Takashi
AU - Kajiyama, Shusaku
AU - Furukawa, Masato
AU - Masuda, Mitsuharu
PY - 1999/1/1
Y1 - 1999/1/1
N2 - A method for measuring propagation of disturbance in a high-speed flow has been developed by using a laser-induced fluorescence (LIF) technique. A cross-correlation function between the time- dependent LIF signal and a pressure sensor signal at a reference point enables to measure a propagation speed of disturbance. Through a bandpass filter, the speed of disturbance with a particular frequency can be obtained. A feature of disturbance propagation can be grasped by drawing maps for the cross-correlation coefficients on a space at successive delay-times and making an animation. The method was applied to a supersonic flow over a rectangular cavity with length to depth ratio of 2, to elucidate feedback mechanisms of self-sustaining flow oscillation with several dominant frequencies.
AB - A method for measuring propagation of disturbance in a high-speed flow has been developed by using a laser-induced fluorescence (LIF) technique. A cross-correlation function between the time- dependent LIF signal and a pressure sensor signal at a reference point enables to measure a propagation speed of disturbance. Through a bandpass filter, the speed of disturbance with a particular frequency can be obtained. A feature of disturbance propagation can be grasped by drawing maps for the cross-correlation coefficients on a space at successive delay-times and making an animation. The method was applied to a supersonic flow over a rectangular cavity with length to depth ratio of 2, to elucidate feedback mechanisms of self-sustaining flow oscillation with several dominant frequencies.
UR - http://www.scopus.com/inward/record.url?scp=71249150497&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=71249150497&partnerID=8YFLogxK
U2 - 10.1299/kikaib.65.948
DO - 10.1299/kikaib.65.948
M3 - Article
AN - SCOPUS:71249150497
VL - 65
SP - 948
EP - 954
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 631
ER -