Resolving high-frequency aeroacoustic noises of high-speed dual-impinging jets using fast pressure-sensitive paint

C Wei, H Zhang, H Fan, P Wang, D Peng, Y Liu - Experiments in Fluids, 2024 - Springer
This study experimentally determines high-frequency aeroacoustic noises of the high-speed
dual-impinging jet, focusing on the generation and evolution mechanism between …

Identification of discrete tonal noise in inclined jet impingement using pressure-sensitive paint

X Liu, C Qin, K Zhao, P Wang, Y Liu, D Peng - AIAA Journal, 2023 - arc.aiaa.org
This paper presents the utilization of fast-responding pressure-sensitive paint (fast PSP) to
identify the discrete tonal noise generated in 55 deg inclined jet impingement. Cases of …

[HTML][HTML] Denoising image-based experimental data without clean targets based on deep autoencoders

F Gu, S Discetti, Y Liu, Z Cao, D Peng - Experimental Thermal and Fluid …, 2024 - Elsevier
Linear data-driven methods have demonstrated being effective denoising filters for image-
based techniques. On the downside, they are still challenged by conditions of extremely low …

[HTML][HTML] Measuring tiny pressure fluctuations using fast pressure-sensitive paint and phase-lock technology: Uniformity evaluation of resonance tube

D Kong, E Li, K Uchida, T Nagata, T Nonomura - Measurement, 2025 - Elsevier
The tiny pressure fluctuations across the end wall of the resonance tube at different
frequencies were captured using fast pressure-sensitive paint (fast PSP) and the phase-lock …

Low-frequency large-scale unsteadiness analysis of lateral jet interactions on a slender cylinder in hypersonic flows using fast-responding pressure-sensitive paint

X Liu, J Zhong, Z Dong, X Fan, D Zou, Y Liu… - … Thermal and Fluid …, 2024 - Elsevier
Lateral jet interactions, commonly encountered in high-speed vehicles, are typical complex
three-dimensional (3D) shock wave/boundary layer interactions. The spatiotemporal …

Superresolution and analysis of three-dimensional velocity fields of underexpanded jets in different screech modes

C Lee, Y Ozawa, T Nagata, T Colonius, T Nonomura - Physical Review Fluids, 2024 - APS
Time-resolved (TR), three-dimensional (3D) velocity fields of screeching, underexpanded
jets are estimated using non-time-resolved particle image velocimetry and simultaneous TR …

Spanwise unsteadiness in the sidewall-confined shock-wave/boundary-layer interaction

X Liu, L Chen, Y Zhang, H Tan, Y Liu… - Journal of Fluid …, 2024 - cambridge.org
Three-dimensional effects of sidewalls on the low-frequency unsteadiness of the shock-
wave/boundary-layer interaction (SBLI) are of academic and practical importance but not yet …

Modal analyses of double pulsed pressure-sensitive paint data of impinging supersonic jet

E Li, Y Oka, Y Ozawa, T Nonomura - Journal of Visualization, 2024 - Springer
The surface pressure field generated by a supersonic impinging jet on a vertical flat plate
was measured using a pressure-sensitive paint (PSP) and a double-pulsed laser. The Mach …

Joint identification of aeroacoustic noises of supersonic impinging jets using particle image velocimetry and pressure-sensitive paint

C Wei, H Fan, Y Liang, H Tu, Q Gao - Physics of Fluids, 2025 - pubs.aip.org
The acoustic, velocity, and surface pressure fields of vertical jet impingement are studied
utilizing pressure sensors, particle image velocimetry, and pressure sensitive paint …

Indexes for evaluation of dynamic characteristics of pressure-sensitive paint based on pressure sensitivity and frequency response

M Kasai, T Nagata, T Nonomura - Measurement Science and …, 2024 - iopscience.iop.org
Two evaluation indexes were proposed to select the optimal PSP for unsteady pressure
measurement from various PSPs with different pressure sensitivity and frequency response …