SURFACE CONSTANT-TEMPERATURE ANEMOMETER SENSORS USED TO ANALYZE PARTICLE IMAGE VELOCIMETRY DATA.
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| Title: | SURFACE CONSTANT-TEMPERATURE ANEMOMETER SENSORS USED TO ANALYZE PARTICLE IMAGE VELOCIMETRY DATA. |
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| Authors: | Vishnyakov, O. I.1 (AUTHOR), Polivanov, P. A.1 (AUTHOR), Bountin, D. A.1 (AUTHOR) bountin@itam.nsc.ru |
| Source: | Journal of Applied Mechanics & Technical Physics. Apr2024, Vol. 65 Issue 2, p274-278. 5p. |
| Subjects: | Mach number, Transonic flow, Boundary layer (Aerodynamics), Shock waves, Unsteady flow, Particle image velocimetry |
| Abstract: | This paper describes a new method for performing the time-frequency analysis of particle image velocimetry data with account for surface constant-temperature anemometer sensor readings. This method is based on calculating correlation coefficients between particle image velocimetry data and constant-temperature anemometer data, previously filtered in a given frequency range. This approach makes it possible to obtain data on the unsteady characteristics of flows throughout the entire measurement range in a frequency range whose boundaries extend beyond the boundaries of the particle image velocimetry frequency range. The proposed method is applied to study nonstationary processes in a region where a shock wave interacts with a boundary layer at a Mach number M = 1.43. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | This paper describes a new method for performing the time-frequency analysis of particle image velocimetry data with account for surface constant-temperature anemometer sensor readings. This method is based on calculating correlation coefficients between particle image velocimetry data and constant-temperature anemometer data, previously filtered in a given frequency range. This approach makes it possible to obtain data on the unsteady characteristics of flows throughout the entire measurement range in a frequency range whose boundaries extend beyond the boundaries of the particle image velocimetry frequency range. The proposed method is applied to study nonstationary processes in a region where a shock wave interacts with a boundary layer at a Mach number M = 1.43. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00218944 |
| DOI: | 10.1134/S0021894424020093 |
