Abstract
The drag coefficient of spherical particles is measured in a vertical shock tube. The glass or nylon particles (diameter 1 or 2 mm) are initially in a free fall in air, SF6 or helium. During the measurement time, they are subjected to an upward-propagating shock wave followed by a rarefaction wave or not, and anyway by a reflected shock wave. Particle trajectories recorded with a high-speed motion picture camera are compared to analytical and simulated trajectories. The drag coefficients (0.50–0.62) obtained for this unsteady situation in a high Reynolds number range (5. × 103 · · · 1.2 × 105) are higher than the standard steady value (0.4).
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References
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© 1995 Springer-Verlag Berlin Heidelberg
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Rodriguez, G., Grandeboeuf, P., Khelifi, M., Haas, JF. (1995). Drag Coefficient Measurement of Spheres in a Vertical Shock Tube and Numerical Simulation. In: Brun, R., Dumitrescu, L.Z. (eds) Shock Waves @ Marseille III. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78835-2_6
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DOI: https://doi.org/10.1007/978-3-642-78835-2_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-78837-6
Online ISBN: 978-3-642-78835-2
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