High-speed time-resolved tomographic particle shadow velocimetry using smartphones
KAUST DepartmentHigh-Speed Fluids Imaging Laboratory
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant NumberURF/1/2981-01-01
Permanent link to this recordhttp://hdl.handle.net/10754/665687
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AbstractThe video-capabilities of smartphones are rapidly improving both in pixel resolution and frame-rates. Herein we use four smartphones in the “slow-mo” option to perform time-resolved Tomographic Particle Shadow Velocimetry of a vortex ring, using 960 fps. We use background LED-illuminated diffusers, facing each camera, for shadow particle imaging. We discuss in-depth the challenges present in synchronizing the high-speed video capture on the smartphones and steps to overcome these challenges. The resulting 3-D velocity field is compared to an instantaneous, concurrent, high-resolution snapshot with four 4k-video cameras using dual-color to encode two time-steps on a single frame. This proof-of-concept demonstration, supports realistic low-cost alternatives to conventional 3-D experimental systems.
CitationAguirre-Pablo, A. A., Langley, K. R., & Thoroddsen, S. T. (2020). High-Speed Time-Resolved Tomographic Particle Shadow Velocimetry Using Smartphones. Applied Sciences, 10(20), 7094. doi:10.3390/app10207094
SponsorsThis study was supported by King Abdullah University of Science and Technology (KAUST) under Grant No. URF/1/2981-01-01.
JournalApplied Sciences (Switzerland)
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