High-Speed Time-Resolved Tomographic Particle Shadow Velocimetry Using Smartphones
Abstract
:1. Introduction
2. Materials and Methods
2.1. Overall Tomographic PIV Setup
2.2. Smartphone Camera Triggering and Synchronization
2.3. Image Pre-Processing
2.4. Tomographic PIV Calibration
2.5. Tomographic PIV Reconstruction and Correlation Procedures
3. Results
3.1. Circulation and Continuity Verification
3.2. Comparison with High Resolution Tomographic PIV System
4. Discussion and Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Platform | OS | Android 7.1 (Nougat) |
---|---|---|
Chipset | Qualcomm MSM8998 Snapdragon 835 | |
CPU | Octa-core (4 × 2.45 GHz Kryo and 4 × 1.9 GHz Kryo) | |
GPU | Adreno 540 | |
Memory | Card Slot | microSD, up to 256 GB |
Internal | 64 GB, 4 GB RAM | |
Cameras | Primary | 19 Mpx, f/2.0, 25 mm, EIS (gyro), predictive phase detection and laser autofocus, LED flash |
Features | 1/2.3-inch sensor size, 1.22 μm pixel size, geo-tagging, touch focus, face detection, HDR, panorama | |
Video | 2160p@30 fps, 720p@960 fps, HDR | |
Secondary | 13 Mpx, f/2.0, 22 mm, 1/3-inch sensor size, 1.12 μm pixel size, 1080 p |
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Aguirre-Pablo, A.A.; Langley, K.R.; Thoroddsen, S.T. High-Speed Time-Resolved Tomographic Particle Shadow Velocimetry Using Smartphones. Appl. Sci. 2020, 10, 7094. https://doi.org/10.3390/app10207094
Aguirre-Pablo AA, Langley KR, Thoroddsen ST. High-Speed Time-Resolved Tomographic Particle Shadow Velocimetry Using Smartphones. Applied Sciences. 2020; 10(20):7094. https://doi.org/10.3390/app10207094
Chicago/Turabian StyleAguirre-Pablo, Andres A., Kenneth R. Langley, and Sigurdur T. Thoroddsen. 2020. "High-Speed Time-Resolved Tomographic Particle Shadow Velocimetry Using Smartphones" Applied Sciences 10, no. 20: 7094. https://doi.org/10.3390/app10207094