Fluid Flow Visualization by Three-dimensionally Reconstructed Tracer Path Lines
Journal of Visualization
Mechanical Response of Young Canes of Wind-Blown Kiwifruit Vines
Journal of Visualization
Wide Range Parametric Study for the Pool Boiling of Nano-fluids with a Circular Plate Heater
Journal of Visualization
Particle Tracking Velocimetry Using the Genetic Algorithm
Journal of Visualization
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Movement of natural sand particles (d=200-300 μm) in a simulated atmospheric boundary layer was visualized using a digital high-speed camera. The consecutive particle images recorded at 2000 fps (frame per second) enabled us to observe the particle transport in detail, especially near the flat sand surface. Various modes of sand saltation were identified. The transverse motion of particles, often ignored in previous studies, was also visualized. In addition, instantaneous velocity fields of saltating particles were obtained using a particle tracking velocimetry (PTV), and statistical analysis of saltating particle trajectories was performed. The qualitative and quantitative results of the present study will be useful for understanding the basic physics of transport of saltating sand particles.