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Evolution of shock waves in polydisperse gas suspensions with a nonuniform particle concentration distribution

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Abstract

The results of a numerical investigation of the laws of shock wave propagation in polydisperse (two-fraction) gas suspensions with a non-uniform initial particle concentration distribution are presented. Examples of shock wave propagation in extended layers of a gas suspension with linearly increasing, linearly decreasing and sinusoidal laws of variation of the particle concentration are considered. It is shown that when shock waves pass through layers of a gas suspension with increasing and decreasing laws of variation of the particle concentration, respectively, amplification and attenuation of the waves are observed; when shock waves travel through gas suspensions with a periodic law of variation of the particle concentration the pressure distribution behind the wave fronts is nonmonotonic. The solutions corresponding to polydisperse and monodisperse gas suspensions with an effective particle size are examined. The nonequilibrium and thermodynamic-equilibrium solutions are compared.

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Authors and Affiliations

  1. Tyumen'

    A. G. Kutushev & U. A. Nazarov

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  1. A. G. Kutushev
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  2. U. A. Nazarov
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 5, pp. 183–190, September–October, 1991.

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Kutushev, A.G., Nazarov, U.A. Evolution of shock waves in polydisperse gas suspensions with a nonuniform particle concentration distribution. Fluid Dyn 26, 789–795 (1991). https://doi.org/10.1007/BF01051003

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  • DOI: https://doi.org/10.1007/BF01051003

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