Abstract
The dynamics of particles of the disperse phase in a turbulent gas flow in planar shock waves sliding along a solid surface with a trapezoid cavity is examined numerically. Lifting of particles from the cavity walls is calculated in the approximation of a rarefied gas suspension. It is shown that the intensity of the transient shock wave and the initial positions of particles have a significant effect on the particle-lifting properties. The height of particle lifting is found to nonmonotonically depend on the initial streamwise coordinate and shock-wave Mach number. It is shown that zones of aggregation and subtraction of particles may be formed at the cavity bottom.
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References
A. V. Fedorov, “Mixing in wave processes propagating in gas mixtures (Review),” Combust., Expl., Shock Waves, 40, No. 1, 17–31 (2004).
Yu. A. Gosteev and A. V. Fedorov, “Calculation of dust lifting by a transient shock wave,” Combust., Expl., Shock Waves, 38, No. 3, 322–326 (2002).
B. Y. Wang, Q. S. Wu, C. Wang, et al., “Shock wave diffraction by a square cavity filled with dusty gas,” Shock Waves, 11, No. 1, 7–14 (2001).
T. R. Amanbaev, “Lifting of disperse particles from a cavity behind the front of an unsteady shock wave with a triangular velocity profile,” J. Appl. Mech. Tech. Phys., 44, No. 5, 634–639 (2003).
W. Merzkirch and K. Bracht, “The erosion of dust by a shock wave in air: Initial stages with laminar flow,” Int. J. Multiphase Flow, 4, 89–95 (1978).
V. F. Volkov, A. V. Fedorov, and V. M. Fomin, “Problem of the interaction between a supersonic flow and a cloud of particles,” J. Appl. Mech. Tech. Phys., 35, No. 6, 832–836 (1994).
Yu. A. Gosteev and A. V. Fedorov, “Mathematical simulation of lifting and ignition of particles of coal deposits,” Combust., Expl., Shock Waves, 39, No. 2, 177–184 (2003).
D. C. Wilcox, Turbulence Modeling for CFD, DCW Ind. Inc., La Cañada, California (1993).
V. M. Kovenya and N. N. Yanenko, Splitting Method in Gas-Dynamic Problems [in Russian], Nauka, Novosibirsk (1981).
B. van Leer, “Flux-vector splitting for the Euler equations,” Lecture Notes Phys., 218, 566–570 (1985).
I. A. Bedarev and N. N. Fedorova, “Investigation of factors affecting the quality of prediction of turbulent separated flows,” Vychisl. Tekhnol., 4, No. 1, 14–33 (1999).
P. Chang, Separation of Flow, Pergamon Press, Oxford (1970).
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 48, No. 1, pp. 24–34, January–February, 2007.
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Bedarev, I.A., Gosteev, Y.A. & Fedorov, A.V. Shock-wave-initiated lifting of particles from a cavity. J Appl Mech Tech Phys 48, 17–26 (2007). https://doi.org/10.1007/s10808-007-0004-0
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DOI: https://doi.org/10.1007/s10808-007-0004-0