On the Methodology for Estimating the Relationship of Disturbances Using Digital Signal Processing in Relation to Measurements in Supersonic Flows
https://doi.org/10.25205/2541-9447-2022-17-4-58-71
Abstract
The paper describes a digital signal processing technique for determining the relationship between disturbances in a supersonic flow and pulsations of the boundary layer of a flat plate model. Estimates of the error of the proposed data processing method are given, the results of an experiment conducted to demonstrate the method on real data are presented.
Keywords
experiment,
supersonic currents,
constant temperature anemometer,
correlation coefficient,
measurement error
Supporting agencies: The study was conducted at the Equipment Sharing Center «Mechanics» of ITAM SB RAS.The research was supported by the Russian Science Foundation project no. 22-19-00666, https://rscf.ru/en/project/22-19-00666/.
About the Authors
L. V. Afanasiev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Leonid V. Afanasiev, engineer researcher
Novosibirsk
A. D. Kosinov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Alexander D. Kosinov, Doctor of Sciences (Physics and Mathematics), senior researcher, head of the
laboratory
Novosibirsk
A. A. Yatskikh
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Aleksey A. Yatskikh, Candidate of Sciences (Physics and Mathematics), junior researcher
Novosibirsk
S. A. Shipul
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Sofia A. Shipul, junior researcher
Novosibirsk
N. V. Semenov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Nikolai V. Semenov, Doctor of Sciences (Physics and Mathematics), senior researcher, leading
researcher
Novosibirsk
References
1. Kendall J. M. Supersonic Boundary Layer Stability Experiments. Proceedings of Boundary Layer Transition Study Group Meeting, Vol. II, Aerospace Corp, San Bernardino, Calif, Aug. 1967.
2. Carter G. C. Estimation of the Magnitude-Squared Coherence Function (Spectrum) NUSC Technical Report 4343, 1972. 107 p.
3. Carter G. C., Knapp C. H., Nuttall A. H. Estimation of the Magnitude-Squared Coherence Function Via Overlapped Fast Fourier Transform Processing. IEEE Transactions on Audio and Electroacoustics, 1973, vol. 21.
4. Afanasev L. V. et al. Correlation measurement of supersonic flow pulsations and boundary layer disturbances in wind tunnel at Mach 2. AIP Conference Proceedings, 2020, vol. 2288, no. 1, 030029.
5. Afanasev L. V. et al. The correlation of the pulsations of flow in the settling chamber with the pulsations of supersonic flow. Journal of Physics: Conference Series, 2019, vol. 1404, no. 1, 012074.
6. Afanasev L. V. et al. Cross-correlation measurement of disturbance initiated by weak shock wave in the flat plate boundary layer with blunt leading edge at Mach 2. AIP Conference Proceedings, 2021, vol. 2351, no. 1, 040035.
7. Afanasev L. V. et al. Measurement of the correlation of disturbances from a weak shock wave and pulsations of the boundary layer of a flat plate with a blunted leading edge at Mach 2. Methods of Aerophysical Research, 2020, p. 3.
8. Afanasev L. V., Kosinov A. D., Yermolaev Yu. G., Semionov N. V. About the Relationship between Disturbances in a Free Supersonic Flow and Disturbances in a Boundary Layer at Mach Number 2. Siberian Journal of Physics, 2020, vol. 15, no. 2, pp. 50–60. (in Russ.) DOI 10.25205/2541-9447-2020-15-2-50-60.
9. Bendat J., Piersol A. Engineering Application of Correlation and Spectral Analysis. New-York, 1980.
10. Bendat J., Piersol A. Measurement and analysis of random processes. Moscow: Mir, 1974. Vol. 11. 464 p. (in Russ.)
11. Baskakov S. I. Radio engineering circuits and signals, Moscow: Higher School, 2000. 462 p. (in Russ.)
12. Vasiliev D. V., Vitol M. R., Gorshenkov Yu. N. et al. Radio engineering circuits and signals: A textbook for universities; Ed. by K. A. Samoilo. M.: Radio and Communications, 1982, 528 p.
13. Kosinov A. D. et al. To the analysis of the natural pulsation development during laminar-turbulent transition in supersonic boundary layer. In: XXV Conference on High-Energy Processes in Condensed Matter (HEPCM), AIP Conference Proceedings 1893; Ed. by V. M. Fomin (American Institute of Physics, Melville, NY, 2017), p. 030073.
Review
For citations:
Afanasiev L.V., Kosinov A.D., Yatskikh A.A., Shipul S.A., Semenov N.V. On the Methodology for Estimating the Relationship of Disturbances Using Digital Signal Processing in Relation to Measurements in Supersonic Flows. SIBERIAN JOURNAL OF PHYSICS. 2022;17(4):58-71. (In Russ.) https://doi.org/10.25205/2541-9447-2022-17-4-58-71
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