Abstract
A study was conducted to demonstrate the use of the picosecond time-resolved laser-induced fluorescence (PITLIF) technique to measure hydroxyl (OH) time series and a dynamic pressure sensor to obtain pressure time series in a Schmidt tube combustor. The stationary portions of simultaneous hydroxyl and pressure time series were analyzed by employing singular spectrum analysis (SSA). The noise-reduction capabilities of SSA were discussed from the point of view of instability mitigation in propulsion systems. A fast Fourier transform (FFT) was applied to the original and reconstructed time series to demonstrate the noise-reduction capability of SSA. Successful reconstruction and noise reduction were also demonstrated for extremely noisy and nonstationary time series.
Original language | English |
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Pages (from-to) | 1148-1151 |
Number of pages | 4 |
Journal | Journal of Propulsion and Power |
Volume | 25 |
Issue number | 5 |
DOIs | |
State | Published - 2009 |
Bibliographical note
Funding Information:This project was supported by the U.S. Air Force Office of Scientific Research under grant FA9550-06-1-0064, with Julian Tishkoff serving as technical monitor. We thank Matthew Gluesenkamp for his work in obtaining the experimental data for this investigation.
Funding
This project was supported by the U.S. Air Force Office of Scientific Research under grant FA9550-06-1-0064, with Julian Tishkoff serving as technical monitor. We thank Matthew Gluesenkamp for his work in obtaining the experimental data for this investigation.
Funders | Funder number |
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Air Force Office of Scientific Research, United States Air Force | FA9550-06-1-0064 |
ASJC Scopus subject areas
- Aerospace Engineering
- Fuel Technology
- Mechanical Engineering
- Space and Planetary Science