Particle Trajectory in Turbulent Boundary Layer at High Particle Reynolds Number

[+] Author and Article Information
Ryoichi Kurose, Hisao Makino

Research Scientist and Senior Research Scientist, Respectively, Yokosuka Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), Yokosuka, Kanagawa 240-0196, Japan

Satoru Komori

Department of Mechanical Engineering, Kyoto University, Kyoto 606-8501, Japan

J. Fluids Eng 123(4), 956-958 (May 20, 2001) (3 pages) doi:10.1115/1.1400750 History: Received August 24, 2000; Revised May 20, 2001
Copyright © 2001 by ASME
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Test apparatus, particle-motion visualization, and air-velocity-measurement systems
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Particle fixation and release system
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Typical time records of the horizontal and vertical positions, velocities and accelerations (500 μm dia particle, Uδ=15.9 m/s): (a) positions; (b) velocities; (c) accelerations.
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Ensembly averaged values of horizontal ejection position and horizontal and vertical velocities: (a) horizontal ejection position; (b) horizontal and vertical ejection velocities; ○, 500 μm dia particle; •, 1500 μm dia particle.
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Correlation between mean angular rotational speed and free-stream wind velocity divided by particle diameter: •, 1500 μm dia particle; ×, 2500 μm dia particle; +, 1000 μm dia particle.
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Comparison of predicted particle trajectories. Arrows S, R, S+R and N mean the predictions with effect of fluid shear, with effect of particle rotation, with both effects and without both effects.




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