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This article is cited in 14 scientific papers (total in 14 papers)
Drag of nonspherical particles in a flow behind a shock wave
V. M. Boiko, S. V. Poplavskii Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk
Abstract:
The early stage of velocity relaxation of nonspherical particles in a flow behind an incident shock wave is considered by the method of multiframe shadowgraphy. A procedure of processing the data on the motion of a free body for determining its acceleration is proposed; in combination with the diagnostic method used, the procedure forms something like a noncontact aerodynamic balance. Novel data on the drag of bodies of irregular shape in a flow behind a shock wave with Mach numbers of 0.5–1.5 and Reynolds numbers of $\approx$10$^5$ typical of dust explosions are obtained. It is found that the values of drag of a nonspherical bluff body and a sphere under these conditions are similar and exceed the drag of a sphere in a steady flow by a factor of 2 to 3.
Keywords:
shock waves, dust suspensions, velocity relaxation, drag.
Received: 24.12.2003
Citation:
V. M. Boiko, S. V. Poplavskii, “Drag of nonspherical particles in a flow behind a shock wave”, Fizika Goreniya i Vzryva, 41:1 (2005), 81–88; Combustion, Explosion and Shock Waves, 41:1 (2005), 71–77
Linking options:
https://www.mathnet.ru/eng/fgv1660 https://www.mathnet.ru/eng/fgv/v41/i1/p81
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